Academic literature on the topic 'TEM and SEM analysis'

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Journal articles on the topic "TEM and SEM analysis"

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Klepeis, Stanley J., J. P. Benedict, and R. M. Anderson. "A technique for preparing semiconductor cross sections for both TEM and SEM analysis." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 712–13. http://dx.doi.org/10.1017/s0424820100155530.

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The ability to prepare a cross-section of a specific semiconductor structure for both SEM and TEM analysis is vital in characterizing the smaller, more complex devices that are now being designed and manufactured. In the past, a unique sample was prepared for either SEM or TEM analysis of a structure. In choosing to do SEM, valuable and unique information was lost to TEM analysis. An alternative, the SEM examination of thinned TEM samples, was frequently made difficult by topographical artifacts introduced by mechanical polishing and lengthy ion-milling. Thus, the need to produce a TEM sample from a unique,cross-sectioned SEM sample has produced this sample preparation technique.The technique is divided into an SEM and a TEM sample preparation phase. The first four steps in the SEM phase: bulk reduction, cleaning, gluing and trimming produces a reinforced sample with the area of interest in the center of the sample. This sample is then mounted on a special SEM stud. The stud is inserted into an L-shaped holder and this holder is attached to the Klepeis polisher (see figs. 1 and 2). An SEM cross-section of the sample is then prepared by mechanically polishing the sample to the area of interest using the Klepeis polisher. The polished cross-section is cleaned and the SEM stud with the attached sample, is removed from the L-shaped holder. The stud is then inserted into the ion-miller and the sample is briefly milled (less than 2 minutes) on the polished side. The sample on the stud may then be carbon coated and placed in the SEM for analysis.
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Yabuuchi, Y., and S. Inazato. "Failure analysis of laser diodes by SEM and TEM." Journal of Electron Microscopy 48, no. 6 (1999): 791–94. http://dx.doi.org/10.1093/oxfordjournals.jmicro.a023750.

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Kuwano, Noriyuki, Sadanori Horikami, Masanori Maeda, and Harini Sosiati. "TEM and SEM Analysis for Formation Mechanism of Tin Whiskers." Advanced Materials Research 545 (July 2012): 16–20. http://dx.doi.org/10.4028/www.scientific.net/amr.545.16.

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Close observation with a transmission electron microscope (TEM) and a scanning electron microscope (SEM) was performed for the growth process of tin (Sn) whiskers on lead (Pb)-free Sn-plating. Whiskers were formed on a Sn layer plated on Cu/polyimide flexible substrate. The whisker was found to be of a single crystal and have a characteristic "Y"-shaped grain boundary structure at its root. The growth process of a curling whisker was successfully observed in a continuous way in SEM. TEM observation revealed that the curling whisker had a single crystallographic orientation irrespective with its external shape. these microstructures indicate that the rearrangement of dislocations plays an important role in the growth process of whiskers.
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Konopka, Katarzyna, Paula Łada, Jan Dutkiewicz, Aleksandra Miazga, and Wojciech Maziarz. "SEM and TEM analysis of composite of ZrO2-Ti system." Composite Interfaces 25, no. 12 (2018): 1091–99. http://dx.doi.org/10.1080/09276440.2018.1460061.

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Krishnamachari, Parakalan, Raed Hashaikeh, and Mike Tiner. "Modified cellulose morphologies and its composites; SEM and TEM analysis." Micron 42, no. 8 (2011): 751–61. http://dx.doi.org/10.1016/j.micron.2011.05.001.

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Bydałek, A. W., K. Najman, A. Kula, S. Biernat, L. Błaż, and W. Wołczyński. "Evaluation of Precipitates Type in Brasses as a Function of Charge Material." Archives of Foundry Engineering 16, no. 3 (2016): 19–24. http://dx.doi.org/10.1515/afe-2016-0042.

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Abstract Trial series of cast alloy MO59 obtained from qualified scrap was investigated. SEM and TEM of resulting precipitates were conducted. The SEM analysis demonstrated the dependence of silicon, phosphorus, iron, chromium and nickel in the composition of the so-called hard precipitates. TEM analysis showed the formation of phase AlFeSi and AlCr. Made studies have shown the important role of the composition of the batch melts brass CuZn39Pb2 type. The analysis of SEM and TEM resulting precipitates pointed to the formation of various forms of divisions, only one of which was described in the literature character of the so-called hard inclusions. The SEM studies demonstrated the dependence of the occurrence of inclusions rich in silicon, phosphorus, iron, chromium and nickel. In contrast, additional TEM analysis indicated the formation of AlFeSi phase type and AlCr. The results of the analyses referred to the structure of the batch. Due to the difficulty of obtaining recycled materials that do not contain these elements necessary to carry out further analyzes in the direction of defining the role of phosphorus in the formation of the so-called hard inclusions.
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Horny, Paula, Dominique Drouin, Raynald Gauvin, and Gianluigi A. Botton. "Characterization of Phase Transformation by Fe-SEM and Fe-TEM Analysis." Microscopy and Microanalysis 7, S2 (2001): 490–91. http://dx.doi.org/10.1017/s143192760002852x.

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The formation of a silicon alloy has been achieved by electron beam irradiation of a nickel-silicon bilayer. This process, called SiDWEL1 , has been developed by Quantiscript. The nickel-silicon bilayer is very thin and the electron beam operates at low energy and current. Silicide formation occurred around the interaction volume of the electrons within the material. This paper describes the nature of the structures produced and the origin of the difficulties encountered with the characterization. The necessity of further analysis with TEM based techniques is highlighted.Figure 1 presents a cross-section of a typical sample. The growth of silicide grains is induced by the e-beam irradiation of the stack for few microseconds. Nucieation is initiated by the diffusion of silicon atoms in nickel grains, induced by the heating arising from the electron beam interaction with the solid. A new phase is revealed by FE-SEM observation, after wet etching of the nickel film, as shown in figures 2 and 3.
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Nicoloso, N., M. Haberkern, A. LeCorre-Frisch, J. Maier, and R. J. Brook. "SEM and TEM/EDX analysis of model interfaces in multicomponent electroceramics." Journal of the European Ceramic Society 11, no. 4 (1993): 347–52. http://dx.doi.org/10.1016/0955-2219(93)90035-p.

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Hashimoto, Masanori, Franklin R. Tay, Hiroki Ohno, et al. "SEM and TEM analysis of water degradation of human dentinal collagen." Journal of Biomedical Materials Research 66B, no. 1 (2003): 287–98. http://dx.doi.org/10.1002/jbm.b.10560.

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Benedict, J. P., R. M. Anderson, and S. J. Klepeis. "Polishing Samples for TEM Analysis Using the Tripod Polishing Technique." EDFA Technical Articles 2, no. 3 (2000): 12–19. http://dx.doi.org/10.31399/asm.edfa.2000-3.p012.

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Abstract This article describes a sample preparation technique by which specific areas on integrated circuits can be manually polished to TEM transparency. The technique, called tripod polishing or the wedge method, produces cross-section samples within a few hours that require little or no additional thinning for TEM analysis. The method can also be used to prepare plan view TEM samples as well as samples for SEM analysis and light microscopy.
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Dissertations / Theses on the topic "TEM and SEM analysis"

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Jenei, István Zoltán. "Nanoparticle assisted tribofilm formation and material transfer studied with SEM and TEM." Doctoral thesis, Stockholms universitet, Fysikum, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-114745.

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The discovery and subsequent synthesis of metal containing fullerenes- IFS (Inorganic Fullerene-like Structures) by R. Tenne et al. has generated considerable scientific interest with great potential impact in many industrial application areas such as lubrication. The lubrication mechanism (tribofilm formation) via exfoliation and deposition of the atomic layers from this cage-like IF-particles was revealed and demonstrated first by this research group. The incorporation of the nanoparticles into lubricants (oils, greases) is however not straightforward. When two surfaces are sliding against each other and a lubricant is used, a thin layer (tribofilm) is formed on the contact area. The friction reducing effects of the nanoparticles can be altered or hindered by certain additives that are used in lubricative oils. The effects of such additives on the tribological behavior of the nanoparticles are investigated by analyzing the tribofilms formed on the worn surfaces using energy-dispersive X-ray spectroscopy in a scanning electron microscope. Another challenge of nanoparticles in lubricants is the penetration of the nanoparticles into the contact zone. A possible solution of this problem is briefly discussed. A modified burnishing technique can be used to coat sliding metallic surfaces with a friction reducing tribofilm. The morphology and composition of these tribofilms was investigated with analytical electron microscopy techniques. In the second part of the thesis electron microscopy was used to investigate the material transfer. Titanium is an elements with high adhesive ability to the counter surface, it displays poor tribological properties in sliding metallic contacts. This can lead to material transfer and consequently severe surface damage. The cold formation and machining of titanium, thus can lead rapid tool wear and poor surface finish. Electron microscopy techniques were used to study the mechanism of titanium transfer to different counter surfaces.
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Västerlund, Emma, and Ronja Flink. "Analysis and characterization of environmental friendly trivalent chromium passivation of aluminum alloys." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129351.

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As of 21st September 2017, industrial use of hexavalent chromium (Cr(VI)) will, due to its environmental toxicity and carcinogenicity, be restricted by REACH regulations. Saab Aeronautics is therefore shifting anticorrosion surface treatment of aluminum alloys from hexavalent chromium conversion to trivalent chromium (Cr(III)) passivation. The purpose of this thesis is to investigate the characteristics of conversion coatings formed with the passivation chemical SurTec 650V, in order to facilitate transfer to the more environmental friendly alternative. Process parameters, such as pH and immersion time in SurTec 650V passivation baths, have been investigated for passivation of three different aluminum alloys; 2024, 6061 and 7075. The characteristics of the Cr(III) conversion coatings achieved at laboratory scale in the thesis work have been compared with SurTec 650V process in production scale and with Cr(VI) containing Alodine 1200 and Alodine 1500 processes. The impact of varying process parameters have been investigated with goniometry, x-ray photoelectron spectroscopy (XPS), auger electron spectroscopy (AES), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to analyse characteristics of the conversion coatings. Differences in chemical composition on the surface and in depth profile was detected with XPS and AES, respectively and topology of coatings was found to differ for different aluminium alloys and parameter combinations. With TEM, the thickness of the conversion coating was found to be approximately 30-50 nm, which is thinner than the coatings formed with Cr(VI) passivation. Characteristics of coatings formed with Cr(III) passivation is concluded to be very dependent on parameter variation, especially for alloy 2024. Differences also occur between passivation at laboratory and production scale. Further evaluation of the production scale SurTec 650V process and corrosion testing should be performed, and an elaboration of a process control is required before the shift to an environmental friendly passivation process can be completely successful at Saab.
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Hancock, Jared M. "Formation and Analysis of Zinc Oxide Nanoparticles and Zinc Oxide Hexagonal Prisms and Optical Analysis of Cadmium Selenide Nanoparticles." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3867.

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In this dissertation, methods to synthesize ZnO are reported. First, zinc oxide nanoparticles were synthesized with small amounts of transition metal ions to create materials called dilute magnetic semiconductors (DMS). We employed a low temperature sol-gel method that produces ZnO nanoparticles of reproducible size and incorporates cobalt, nickel, and manganese ions into the nanoparticles. Conditions were controlled such that a range of amounts of Co, Ni, and Mn were incorporated. The incorporation was tracked by color changes in the white ZnO powder to blue for Co, green for Ni and yellow for Mn. XRD measurements showed the nanoparticles were on the order of 10 nm in diameter and had a wurtzite structure. Magnetic measurements showed a change from diamagnetic to paramagnetic behavior with increasing concentration of metal dopants. Second, formation of ZnO single crystal hexagonal prisms from a sol-gel method is presented. The method required water, zinc acetate, and ethanolamine to create a gel of zinc hydroxide and zinc hydroxide acetate, which upon heating formed single crystal hexagonal prisms. Characterization of the gel was done by XRD as well as XRD high temperature chamber (HTK) to determine the role of temperature in prism formation. SEM images showed hexagonal prisms were of uniform size (0.5 × 2 µm.) TEM and electron diffraction images showed a change from randomly oriented particles to an ordered single crystal after heating. Water and the acetate salt of zinc proved to be critical to prism formation. Lastly, we report absorption and fluorescence properties of synthesized oligothiophenes and oligothiophene-ruthenium complexes that are bound to CdSe nanoparticles. Their ability to act as sensitizers and charge transfer junctions was tested. It was found that fluorescence of CdSe nanoparticles was quenched when they were bound to the oligothiophenes, and that the fluorescence of the oligothiophenes was also quenched. The fluorescence lifetimes of the quenched species were shortened.
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Liu, Jing. "Implementation of a Semi-automatic Tool for Analysis of TEM Images of Kidney Samples." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-180813.

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Glomerular disease is a cause for chronic kidney disease and it damages the function of the kidneys. One symptom of glomerular disease is proteinuria, which means that large amounts of protein are emerged in the urine. To be more objective,transmission electron microscopy (TEM) imaging of tissue biopsies of kidney are used when measuring proteinuria. Foot process effacement (FPE), which is defined as less than1 ”slit”(gap)/micrometer at the glomerular basement membrane (GBM). Measuring FPE is one way to detect proteinuria using kidney TEM images, this technique is a time-consuming task and used to be measured manually by an expert. This master thesis project aims at developing a semi-automatic way to detect the FPE patients as well as a graphic user interface (GUI) to make the methods and results easily accessible for the user. To compute the slits/micrometer for each image, the GBM needs to be segmented from the background. The proposed work flow combines various filters and mathematical morphology to obtain the outer contour of the GBM. The outer contour is then smoothed, and unwanted parts are removed based on distance information and angle differences between points on the contour. The length is then computed by weighted chain code counts. At last, an iterative algorithm is used to locate the positions of the "slits" using both gradient and binary information of the original images. If necessary, the result from length measurement and "slits" counting can be manually corrected  by the user. A tool for manual measurement is also provided as an option. In this case, the user can add anchor points on the outer contour of the GBM and then the length is automatically measured and "slit" locations are detected. For very difficult images, the users can also mark all "slits" locations by hand. To evaluate the performance and the accuracy, data from five patients are tested,for each patient six images are available. The images are 2048 by 2048 gray-scale indexed 8 bit images and the scale is 0.008 micrometer/pixel. The one FPE patient in the dataset is successfully distinguished.
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Lundberg, Daniel, Filip Wilson, Hjalmar Gunnarsson, Leo Sjörén, Robin Xu, and Erik Djurberg. "Long term aging and creep exposure for advanced heat resistant alloys : A phase analysis." Thesis, Uppsala universitet, Institutionen för materialvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-446407.

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This project was ordered by Sandvik Materials Technology and was performed by a group of students at Uppsala university. The purpose of the project was to study precipitation behavior and structure stability in six advanced heat resistant alloys. Each sample were subjected to a creep rupture test in 600 or 700°C depending on the alloy type. Two parts of each alloy where examined; one part which had been affected by creep and another part which was unaffected by creep. A literature study was performed first to gain knowledge of the scientific theory utilized in this project, namely creep, precipitation hardening, and about the different materials which were analyzed. Preliminary results for the phase composition of the materials were obtained from a Thermo-Calc (TC) simulation. The SEM-images showed nothing noteworthy for any sample due to the roughness of the sample surfaces. The EDS-analysis showed chromium depletion in the centers of the aged samples of HT9 and Sanicro® 75X. Other minority phases such as Cr23C6 in Sanicro®70, P-phase and a titanium nitride phase in sanicro® 60X, VB in Esshete 1250 and Sigma-phase in 4C54 were identified using EDSmapping. It was found that when using XRD to analyze the phase compositions of small samples it is impractical to have the samples cast in bakelite beforehand. The XRD-results obtained in this project showed that more than 90% of the XRD diffractogram for every sample was graphite, which made the identification of minority phases impossible. The quality of the LOM-images varied greatly between samples, for 4C54 grain sizes were measured in all images, for Esshete 1250 grain sizes were measured for the crept sample, and for Sanicro® 60X measurements could only be taken from one image. Most of the sample preparation was insufficient to achieve the test results necessary for complete microstructural analysis and phase analysis of the samples. The mistakes in the practical steps of the project were noted and improvements for these mistakes are presented in the conclusion.
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Košík, Juraj. "Determination of titanium dioxide nanoparticles in personal care products." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-240803.

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Předkládaná diplomová práce se zabývá extrakcí nanočástic oxidu titaničitého z produktů osobní péče, konkrétně opalovacích krémů a následnou charakterizací těchto částic. Počet komerčně dostupných produktů s obsahem nanočástic TiO2 se neustále zvyšuje a to se sebou přináší potřebu vyhodnotit potenciální osud a nepřímou expozici TiO2 nanošástic o různých velikostí a tvarů a zkoumat jejich celý životní cyklus. Bylo zkoumáno použití ultrafiltrace a ultracentrifugace jako extrakční metody. Dvě metody pro extrakci TiO2 nanočástic byly vyvinuty a aplikovány na vzorky opalovacích krémů. Extrahované částice mohou být použity pro ekotoxikologické studie, případně experimenty v mesokosmu. Velikost částic byla stanovena pomocí metody dynamického rozptylu světla a transmisní elektronové mikroskopie.
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Liu, Yang. "‘Tri-3D’ electron microscopy tomography by FIB, SEM and TEM : Application to polymer nanocomposites." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0076/document.

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Ce travail a porté sur la caractérisation et la quantification en 3D de la répartition de charges de différents types (nanoparticules, nanotubes, etc.) dans des matrices polymères. Nous nous focalisons sur les techniques de tomographie en microscopie électronique. Une approche multiple en tomographie électronique a été réalisée : la tomographie en FIB/MEB (faisceau d’ions focalisé/microscope électronique à balayage), la tomographie en MEB et la tomographie en MET (microscope électronique en transmission). Les nanocomposites polymère sont généralement élaborés aux fins d’améliorer les propriétés physiques (mécanique, électrique, etc.) du matériau polymère constituant la matrice, grâce à une addition contrôlée de charges nanométriques. La caractérisation de tels matériaux, et l’établissement de corrélations précises entre la microstructure et les propriétés d’usage, requièrent une approche tri-dimensionnelle. En raison de la taille nanométrique des charges, la microscopie électronique est incontournable. Deux systèmes de nanocomposite polymère ont été étudiés par une approche multiple de tomographie électronique : P(BuA-stat-S)/MWNTs (copolymère statistique poly (styrène-co-acrylate de butyl) renforcé par des nanotubes de carbone multi-parois), et P(BuA-stat-MMA)/SiO2 (copolymère statistique poly(butyl acrylate-co-methyl methacrylate) renforcé par des nanoparticules de silice). Par combinaison de divers techniques, la caractérisation et la quantification des nanocharges ont été possibles. En particulier, la taille, la fraction volumique et la distribution des charges ont été mesurées. Cette étude a ainsi fourni des informations en 3D qui contribuent à mieux comprendre les propriétés des nanocomposites. Une attention particulière a été portée aux artefacts et causes d’erreur possibles durant l’étape de traitement 3D. Nous avons également essayé de comparer les différentes techniques utilisées du point de vue de leurs avantages et inconvénients respectifs, en dégageant des possibilités d’amélioration future<br>This work is focused on the characterization and quantification of the 3D distribution of different types of fillers (nanoparticles, nanotubes, etc.) in polymer matrices. We have essentially used tomography techniques in electron microscopy. Multiple approaches to electron tomography were performed: FIB-SEM (focused ion beam/scanning electron microscope) tomography, SEM tomography and TEM (transmission electron microscope) tomography. Polymer nanocomposites are basically synthesized in order to improve the physical properties (mechanical, electric, etc.) of the pure polymer constituting the matrix, by a controlled addition of fillers at the nanoscale. The characterization of such materials and the establishment of accurate correlations between the microstructure and the modified properties require a three-dimensional approach. According to the nanometric size of the fillers, electron microscopy techniques are needed. Two systems of polymer nanocomposites have been studied by multiple electron tomography approaches: P(BuA-stat-S)/MWNTs (statistical copolymer poly(styrene-co-butyl acrylate) reinforced by multi-walled carbon nanotubes) and P(BuA-stat-MMA)/SiO2 (statistical copolymer poly(butyl acrylate-co-methyl methacrylate) reinforced by silica nanoparticles). By combining various techniques, the characterization and the quantification of nanofillers were possible. In particular, statistics about size, distribution and volume fraction of the fillers were measured. This study has then provided 3D information, which contributes to a better understanding of properties of the nanocomposites. Attention has been paid to analyze carefully original data, and artifacts and causes of errors or inaccuracy were considered in the 3D treatments. We also attempted to compare benefits and drawbacks of all techniques employed in this study, and perspectives for future improvements have been proposed
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Kaneko, Kenji. "Microstructural studies of Argyle diamonds." Thesis, University of Bristol, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295550.

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Becerril-Garcia, Hector Alejandro. "DNA-Templated Nanomaterials." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1823.pdf.

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au, jeremy shaw@uwa edu, and Jeremy Shaw. "Biomineralisation processes in the radula teeth of the chiton Acanthopleura hirtosa (Mollusca: Polyplacophora)." Murdoch University, 2007. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20080703.163505.

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A detailed row by row investigation of major lateral tooth cusp mineralisation, together with the concomitant development of the superior epithelial tissue surrounding the teeth of the chiton Acanthopleura hirtosa has been undertaken using a combination of light microscopy, and scanning and transmission electron microscopy. A holistic approach has been adopted that encompasses observations over a range of spatial scales, from whole radula mineralisation processes to those occurring within individual tooth cusps at various stages of development. In addition, mineralisation in radulae from freshly collected animals has been compared to that of animals maintained for extensive periods within a newly developed iron limited system, which restricts radula mineralisation without impeding the formation of the organic matrix. An evaluation of the iron limitation technique has revealed that maintaining specimens of A. hirtosa within an iron poor environment results in a significant departure from the normal pattern of mineralisation in these animals. As a consequence of iron limitation, there is an obvious increase in the number of unmineralised tooth rows in addition to associated alterations in structure and composition at all stages of tooth development. In normal specimens of A. hirtosa, the onset of mineralisation in the tooth cusps occurs following the prior accumulation of iron at the junction zone and the sudden accumulation of iron containing granules in the cusp epithelium at tooth row 13. The superior epithelium surrounding the tooth cusps undergoes a series of developmental changes leading up to, and following, the onset of mineralisation. In particular, the abundance of mitochondria within the apical cusp epithelium increases, presumably in order to provide the ideal conditions of pH, and thus solubility, needed for the supersaturation of iron and its nucleation at row 13. Once mineralisation has commenced, the microvilli attached to the cusps develop rapidly, and are suggested to do so in order to facilitate the transport of iron, and thereby ensure that a high concentration gradient of this element into the cusps is maintained. The delivery of iron into the cusps occurs from two fronts, the first from the superior epithelium via the posterior surface, and the second from the junction zone via an internal pathway situated along the lepidocrocite boundary between the magnetite and core regions of the tooth. The existence of a plume of elements between this internal mineralisation pathway and the junction zone, provides the first direct evidence that the junction zone is involved in the storage and release of elements for cusp mineralisation. Data from iron limited radulae also indicate that iron continues to be deposited at the junction zone in preference to the superior epithelium or cusps, despite the disruption of mineralisation, highlighting the importance of this region in the mineralisation process. Iron reinstatement experiments have also shown that the internal pathways of iron delivery within the organic matrix remain viable, despite prolonged periods of iron limitation. In addition, the reinstatement of iron has revealed that the plumes, situated between the junction zone and internal mineralising pathway of the cusp, stem from the centre of the plate like junction zone, directly above the stylus canal, a tube like cavity situated within the styli of each major lateral tooth. An in depth study of the stylus canal has revealed that cells within the canal are remarkably similar to those of the epithelium surrounding the cusps, suggesting that this structure may also be involved in the delivery of ions to the junction zone. The stylus canal is shown to be present in the major lateral tooth cusps of 38 chiton species distributed worldwide, and is therefore likely to be a feature common to all chitons. The presence of the canal, and indeed its absence from the bases of all remaining non iron mineralised teeth, irrespective of chiton species, also points strongly to a functional relationship between the stylus canal and tooth cusp mineralisation.
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Books on the topic "TEM and SEM analysis"

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Henning, K. H. Electron micrographs (TEM, SEM) of clays and clay minerals. Akademie-Verlag, 1986.

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Canada Centre for Mineral and Energy Technology. Mp-Sem-Ips Image Analysis System. s.n, 1987.

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Paoli, Maria Célia Pinheiro Machado. and Hellmann Michaela, eds. Movimentos sociais e democracia no Brasil: "sem a gente não tem jeito". Marco Zero, 1995.

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Fernandes, Cleudemar Alves. (Re)tratos discursivos do sem-terra. EDUFU, 2007.

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Berghaus, D. G. Calculations for experimental stress analysis, using the personal computer: A SEM Education Committee Program, SEM Spring Conference, June 14-19, 1987, Houston, Texas. SEM, 1987.

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Edgley, Donald S. The examination and analysis of rare earth magnet alloys with the SEM. University of Birmingham, 1994.

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Canada, Canada Status of Women. Gender-based analysis: A guide for policy-making. Status of Women Canada, 1996.

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Ditton, Robert B. 1984 Deep Sea Roundup: An analysis of participants' characteristics, attitudes, and expenditures. Texas A&M Sea Grant College Program, 1986.

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Low, Mei, T. Ramayah, and Choon Seah. To Better Understand Consumers’ Acceptance of Medical Wearable Devices: A Combined Use of PLS-SEM and Necessary Condition Analysis. SAGE Publications Ltd, 2023. http://dx.doi.org/10.4135/9781529627985.

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M. W. S. J. M. van Slageren. A taxonomic monograph of the genera Brachiolejeunea and Frullanoides (Hepaticae), with a sem analysis of the sporophyte in the Ptychanthoideae. Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht], 1985.

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Book chapters on the topic "TEM and SEM analysis"

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Engler, Olaf, Stefan Zaefferer, and Valerie Randle. "Diffraction Techniques in TEM and SEM." In Introduction to Texture Analysis, 3rd ed. CRC Press, 2023. http://dx.doi.org/10.1201/9781003258339-9.

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Meng-Burany, Xianying. "Analysis of Electroplated Films Using Dual-Beam FIB/SEM and TEM Techniques." In Modern Electroplating. John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470602638.ch29.

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Seta, Sueshige. "Analysis of Biological Elements in Scalp Hairs with SEM-EDX and TEM and Its Application to the Hair Comparison." In Electron Microscopy in Forensic, Occupational, and Environmental Health Sciences. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4684-5245-7_6.

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Yagi, K., Y. Tanishiro, and H. Minoda. "Spectro-microscopy by TEM-SEM." In Nanoscale Spectroscopy and Its Applications to Semiconductor Research. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45850-6_2.

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Verkade, Paul. "Electron Microscopy (TEM and SEM)." In Essential Guide to Reading Biomedical Papers. John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781118402184.ch7.

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Ominami, Yusuke. "Environmental SEM (Atmospheric SEM)." In Compendium of Surface and Interface Analysis. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6156-1_28.

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Chairany, Paxilla, Muharman Lubis, Deden Witarsyah, and Wahjoe Witjaksono. "Acceptance Analysis of CRM System Adoption with Technology Acceptance Model (TAM 3) Using Structural Equation Modeling (SEM) (A Case Study)." In Lecture Notes in Networks and Systems. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-9559-8_30.

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Solá, Francisco. "SEM and TEM Characterization of Polymer CNT Nanocomposites." In Polymer Nanotube Nanocomposites. John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118945964.ch4.

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Solanki, Sandeep, Laxman Ram Paliwal, and Raj Bahadur Sharma. "PLS-SEM Analysis of the Impact of Website Quality on Repeat Visit Intentions of Online Buyers Through TAM and Online Trust." In Studies in Systems, Decision and Control. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-62106-2_75.

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Caldwell, N. H. M., B. C. Breton, and D. M. Holburn. "Towards the intelligent SEM." In Electron Microscopy and Analysis 1997. CRC Press, 2022. http://dx.doi.org/10.1201/9781003063056-12.

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Conference papers on the topic "TEM and SEM analysis"

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Hye Hyun, Ji, Yanchao Dai, In Chang Choi, and Christopher H. Kang. "The Impact of TEM Analysis Temperature on Photoresist Profiles Using Cryo-FIB and Cryo-TEM." In ISTFA 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.istfa2024p0221.

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Abstract Photoresist (PR) profiles tend to have deformation and shrinkage with typical transmission electron microscopy (TEM) analysis method using a focused ion beam scanning electron microscope (FIB-SEM) and TEM. The elevated temperatures during sample preparation and TEM analysis are believed to contribute to these issues. This study evaluates the effectiveness of cryogenic workflow in mitigating PR profile shrinkage by employing cryo-focused ion beam (Cryo-FIB) and cryo-transmission electron microscopy (Cryo-TEM). Comparative experiments were conducted at room temperature and cryogenic conditions, demonstrating that full cryogenic workflow reduces the shrinkage of PR, bottom anti-reflective coating (BARC), and line critical dimension (CD). Our findings indicate that both the sample preparation and analysis temperatures influence PR profiles. This study highlights how the full cryogenic workflow significantly minimizes shrinkage, providing more accurate PR profile measurements.
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Sanou, Isaac Wilfried, Julien Baderot, Ali Hallal, et al. "Metrology and segmentation in SEM/TEM imaging: accelerating semiconductor analysis through advanced deep learning techniques." In Metrology, Inspection, and Process Control XXXIX, edited by Matthew J. Sendelbach and Nivea G. Schuch. SPIE, 2025. https://doi.org/10.1117/12.3051067.

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Brogden, Valerie, Jeff Garman, Kurt Langworthy, and Steve Wiemholt. "Increasing TEM Prep Throughput with an Extendable Manipulator Tip." In ISTFA 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.istfa2024p0153.

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Abstract We introduce a novel piece of hardware that allows researchers to extend a nanomanipulator needle further into the vacuum chamber of a dual beam FIB SEM without venting the system. This hardware innovation will elevate throughput and diminish the instrument's downtime, which is pivotal for transmission electron microscope (TEM) sample preparation—a process integral to semiconductor manufacturers where the demand for TEM samples is high due to their necessity for process characterization and failure analysis of integrated circuits. Traditionally, the manipulator needle shortens with each sample preparation, ultimately reaching a mechanical limit that necessitates system venting to install a new needle. This hardware innovation allows users to feed out more needle length into the vacuum chamber by twisting a knob on the outside of the FIB SEM.
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Akter, Nadia, Grace Wagner, Fardad Azarmi, and Ying Huan. "Microstructural Study of Nickel Chromium Coating with Complex Composition for High-Performance Application." In ITSC 2025. ASM International, 2025. https://doi.org/10.31399/asm.cp.itsc2025p0099.

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Abstract This study offers a comprehensive understanding of NiCrSiBMoFeCuC coating deposited via HVOF through the use of high-resolution TEM imaging, which provides detailed crystallographic information and defect analysis capabilities. The chemical composition of the coating was evaluated with both SEM-EDS and TEM-EDS, while lattice parameter values were measured using both x-ray diffraction and transmission electron microscopy.
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Perez, R., O. Flores, L. Martinez, A. Zaragoza, and N. Acuña. "Microstructural and Chemical Characterization of MIC Products from Stainless Steel Probes in Seawater Using SEM and AFM Techniques." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96282.

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Abstract The use of electron microscopy techniques have various applications in the corrosion research. Scanning electron microscopy (SEM) and the chemical analysis of the corrosion products are commonly found in the corrosion related literature. Also, microstructural characterizations based on transmision electron microscopy (TEM) and electron diffraction patterns are widely used. More recent microscopy techniques such as the atomic force microscopy (AFM) have also been used for corrosion research. One of the main advantages of this technique is that allows to perform microscopy observations in situ during corrosion experiments. In this work some application of these techniques to the study of microbiologically induced corrosion (MIC) of stainless steel in natural seawater are presented.
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Pronin, Nick, Khiem Ly, Tony Chrastecky, et al. "Localization of Subtle Front-End FinFET Defects Using EBIC." In ISTFA 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.istfa2024p0205.

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Abstract We demonstrate the effectiveness of combining top-down and cross-sectional electron beam induced current (EBIC) imaging with SEM nanoprobe analysis to identify subtle front-end defects in advanced FinFET technology. Our approach successfully localized a novel fin nanocrack defect that had previously eluded detection through conventional TEM imaging. This systematic resistive pMOS failure, observable only in memory arrays at 150°C, exemplifies the power of EBIC as an alternative to scanning capacitance microscopy for detecting dopant anomalies and subtle defects. The sample preparation and EBIC methodologies presented here are broadly applicable across CMOS technologies, offering a versatile approach to defect analysis.
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Clark, Ronald N., Robert Burrows, Tomas Martin, et al. "Examination of a Ferritic-Martensitic Steel Following Irradiation and High Temperature Water Corrosion." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-18127.

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Abstract This paper focuses on the characterization of an advanced steel which has been developed for use as a structural material within future nuclear fusion reactors, including in irradiated water coolant-facing locations. In the paper an experimental plan is described which would allow both the corrosion and stress corrosion cracking susceptibility of irradiated Eurofer-97 to be studied. Also included are early results from characterization of self-ion irradiated (using Fe ions) Eurofer-97 following high temperature corrosion experiments using electron microscopy techniques. Field emission gun scanning electron microscopy (FEG SEM) images of the surfaces of unirradiated Eurofer-97 are compared to conventional unirradiated stainless steel types following a high temperature corrosion experiment. In a different, longer, high temperature corrosion experiment using ion-irradiated Eurofer-97, a focused ion beam scanning electron microscope (FIB SEM) was used to prepare lamella for observation by high magnification transmission electron microscopy (TEM) and elemental analysis.
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Thompson, J. J., and V. S. Agarwala. "A Heat Treatment for Reducing Corrosion and Stress Corrosion Cracking Susceptibilities in 7XXX Al Alloys." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86204.

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Abstract The recently developed retrogression and reaging (RRA) heat treatments have been applied to redress the trade-off between strength and corrosion resistance in 7000 series aluminum alloys. So far they have been applied to thin and small sample sizes with some success. In this study a modified RRA treated material was found to show significant improvement in both the exfoliation and stress corrosion cracking (SCC) resistances, with only a minimal loss in yield strength compared to its T6 temper. Comparative SEM and TEM analyses of their fracture mode were made. A model has been proposed to explain the differences in their microstructures and marked differences in SCC susceptibilities.
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Ming Li, Jing Zhou, Qiang Chen, and W. T. Kary Chien. "Characterization of pad surface defect by TEM, SEM and EDX." In 2009 16th IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA). IEEE, 2009. http://dx.doi.org/10.1109/ipfa.2009.5232589.

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Žnidaršič, Nada. "Correlative TEM - SEM BSE imaging and elemental analysis of mineralizing epithelial cells." In European Microscopy Congress 2020. Royal Microscopical Society, 2021. http://dx.doi.org/10.22443/rms.emc2020.784.

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Reports on the topic "TEM and SEM analysis"

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Bradley, J., Z. Dai, G. Graham, and N. Teslich. Final Report - SRNL Agreement #AC51296V SEM, FIB, TEM Studies of CZT Samples. Office of Scientific and Technical Information (OSTI), 2007. http://dx.doi.org/10.2172/924965.

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Shul, Randy J., Michael J. Rye, Greg Salazar, and Steve Ball. FEI FIB/SEM Failure Analysis. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1492079.

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Kramer, Henrique dos Santos, Matheus Donadello, Nicolas Gomes Laurentino, et al. Recomendações para ensaio de resistência ao fogo em sistemas de paredes. Edited by Roberto Chrust. Alconpat Internacional, 2025. https://doi.org/10.21041/alconpatinternacional/rectec/2025-06-resistenciadeparedesalfuego.

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Esta Recomendação Técnica tem como objetivo apresentar o método para análises laboratoriais de ensaios de resistência ao fogo, em paredes com e sem função estrutural, bem como estabelecer as diretrizes para interpretação dos fenômenos observados durante estas análises, apresentando a classificação final destes sistemas, segundo os resultados obtidos.
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Petruk, W. The MP-SEM-IPS image analysis system. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/307078.

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Cook, R. Be Shell Wall Thickness By SEM Analysis. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/15016016.

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Zyphur, Michael. Beginning with SEM in Stata: Path Analysis. Instats Inc., 2022. http://dx.doi.org/10.61700/4augeso7wrt0t469.

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This seminar introduces the Stata ‘sem’ modeling framework and explores topics including interactions (moderation), indirect effects (mediation), conditional indirect effects (moderated mediation), and instrumental variable methods in a path analytic framework. Bootstrapping and Bayesian analysis methods will also be covered, along with plotting methods for hypothesis testing and displaying results. An official Instats certificate of completion is provided at the conclusion of the seminar. For European PhD students, the seminar offers 2 ECTS Equivalent points.
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Zyphur, Michael. Instrumental Variable Analysis using Stata's SEM Command. Instats Inc., 2022. http://dx.doi.org/10.61700/7ukunn6wlwzmh469.

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This seminar introduces the sem command in Stata for estimating causal effects with observational data using instrumental variables in both path analysis and SEM, grounded in introductions to both techniques including CFA. Traditional bootstrapping and Bayesian methods are explored for estimation and hypothesis testing. An official Instats certificate of completion is provided at the conclusion of the seminar. For European PhD students, the seminar offers 2 ECTS Equivalent point.
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Dahmen, U. TEM analysis of enclosed crystal microstructures and interfaces. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/5695667.

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Bezerra, Maria do Carmo. Preservação ambiental e planejamento da expansão urbana: o caso do Município de Toledo. Inter-American Development Bank, 2013. http://dx.doi.org/10.18235/0010371.

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O tema objeto de estudo, Preservação Ambiental e Implantação de Parques Urbanos se apresenta como demanda reduzida da carteira Procidades em execução até 2011, contando com 0,5% dos investimentos. A dificuldade de abordagem que integre preservação ambiental e cidades em processo de expansão se constitui num desafio a ser enfrentado. Os espaços das cidades brasileiras se expandiram sem a adequada malha de áreas verdes de lazer e, também, tiveram as áreas de fragilidade ambiental, especialmente ao longo dos cursos d'água, ocupadas por assentamentos precários. O maior desafio para preservar áreas ambientais inseridas na malha urbana é evitar a sua ocupação por usos que as degradem, sem incorrer no equívoco de pensar que a preservação em si se constitui em uso urbano. A idéia de preservação associada ao nada fazer em áreas localizadas nas estruturas urbanas com forte pressão de urbanização e sem o devido controle urbanístico, tem levado à degradação ambiental.
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Zang, Emma. Bayesian Statistics for Social and Health Scientists in R and Python + 2 Free Seminars. Instats Inc., 2022. http://dx.doi.org/10.61700/bgfpomu3wdhe5469.

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This seminar will introduce you to Bayesian statistics, which are increasingly popular and offer a powerful alternative to more traditional forms of statistical analysis. Targeted at a social and health science audience, the seminar will cover the fundamentals of Bayesian inference and illustrate a variety of techniques with applied examples of Bayesian regressions and hierarchical models. You will gain an understanding of Markov chain Monte Carlo (MCMC) methods and learn how to develop and validate Bayesian models so that you can apply them in your daily research, with the kinds of intuitive inferences that Bayesian methods allow. When purchasing the seminar you will be freely enrolled in two on-demand seminars for Path Analysis in R and CFA/SEM in R with Bayesian estimation by Professor Zyphur, helping you to extend your learning and offering a substantial value. An official Instats certificate of completion is provided at the conclusion of the seminar. For European PhD students, the seminar offers 2 ECTS Equivalent points.
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