Relevant bibliographies by topics / Cemented / Dissertations / Theses
To see the other types of publications on this topic, follow the link: Cemented.

Dissertations / Theses on the topic 'Cemented'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Cemented.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Nyrot, Elias. "Compressive stresses in cemented carbide." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-224240.

Full text
Abstract:
This master thesis work aims towards gaining a deeper understanding of residualstresses in cemented carbide rock drill inserts. Compressive stresses are wanted inthe surface material since they prevent crack growth and wear of the material andthis work is part of the development of better and longer lasting inserts.Different ways of measuring residual stress with 2-dimensional x-ray diffraction areinvestigated. Also different surface treatment methods, used for attaining thesecompressive stresses, are tested and evaluated by measuring surface residual stress.Also hardness and residual stress i
APA, Harvard, Vancouver, ISO, and other styles
2

Aldhafeeri, Zaid. "Reactivity of Cemented Paste Backfill." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38111.

Full text
Abstract:
Mining has been one of the main industries in the course of the development of human civilization and economies of various nations. However, every industry has issues, and one of the problems the mining industry has faced is the management of waste, especially sulphide-bearing tailings, which are considered to be a global environmental problem. This issue puts pressure on the mining industry to seek alternative approaches for tailings management. Among the several different types of methods used, cemented paste backfilling is one of the technologies that offers good management practices for th
APA, Harvard, Vancouver, ISO, and other styles
3

Nagel, Katrin [Verfasser]. "Cemented Tibial Tray Fixation / Katrin Nagel." Aachen : Shaker, 2017. http://d-nb.info/1138178217/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Li, Qiang, and 李强. "Time effects on artificially cemented kaolin." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208034.

Full text
Abstract:
With the aim to achieve a better understanding of the time-dependent behaviour of structured clays, especially cemented clay, a critical review of the literature and a programme of laboratory testing have been carried out. In order to investigate the time effects on different structured clays, a series of advanced triaxial and oedometer tests were conducted on reconstituted pure kaolin (PK), artificially cemented kaolin (ACK) with different curing periods, and remoulded artificially cemented kaolin (RACK). Strain rate effects were examined in pure kaolin with different degrees of over-consoli
APA, Harvard, Vancouver, ISO, and other styles
5

Tozzi, Gianluca. "In vitro studies of bone-cement interface and related work on cemented acetabular replacement." Thesis, University of Portsmouth, 2012. https://researchportal.port.ac.uk/portal/en/theses/in-vitro-studies-of-bonecement-interface-and-related-work-on-cemented-acetabular-replacement(a50b8352-300d-454e-8e1f-252b5a271412).html.

Full text
Abstract:
The lasting integrity of the bond between bone cement and bone defines the long-term stability of cemented acetabular replacements. Although several studies have been carried out on bone-cement interface at continuum level, micromechanics of the interface has been studied only recently for tensile and shear loading cases. Furthermore, the mechanical and microstructural behaviour of this interface is complex due to the variation in morphology and properties that can arise from a range of factors. In this work in vitro studies of the bone-cement interfacial behaviour under selected loading condi
APA, Harvard, Vancouver, ISO, and other styles
6

Haglund, Sven. "Sintering of cemented carbides : experiments and modeling /." Stockholm : Tekniska högsk, 1998. http://www.lib.kth.se/abs98/hagl0529.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Farsangi, Parviz N. "Improving cemented rockfill design in open stoping." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40117.

Full text
Abstract:
Cemented rockfill, CRF, is comprised of sized aggregate mixed with various types and amounts of binder materials. This type of fill with closely controlled specifications is employed for subsequent pillar recovery and improved ground support.<br>The goal of this study is to improve consolidated rockfill design for bulk mining methods, with Kidd Creek Mines, KCM, as a case study, from a functional and cost point of views. Cemented rockfill at KCM represents approximately 20% of the total extraction costs. Cost cutting initiatives however have to be mindful of the negative if not disastrous effe
APA, Harvard, Vancouver, ISO, and other styles
8

Liu, Chunxin. "Alternative binder phases for WC cemented carbides." Thesis, KTH, Materialvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-168229.

Full text
Abstract:
WC cemented carbides are composites consisting of WC and a binder phase. WC/Co is widely used as cutting tools due to its excellent combination of hardness and toughness. This thesis work was performed at the R&amp;D department of Sandvik Coromant and aimed to find the alternative binder phase to substitute cobalt. Several compositions of Fe-Ni and Fe-Ni-Co binder have been investigated in this study. The WC/Co reference samples were also prepared. The initial compositions were decided by the CALPHAD method. The samples were then produced by the means of powder metallurgy. The producing condit
APA, Harvard, Vancouver, ISO, and other styles
9

Kaplan, Bartek. "Equilibrium aspects of Cr-alloyed cemented carbides." Doctoral thesis, KTH, Termodynamisk modellering, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-175856.

Full text
Abstract:
In view of the extensive use of Cr as a grain growth inhibitor in WC-Co cemented carbides this thesis comprises a combined experimental and ab initio study of a number of critical issues pertaining to phase equilibria of the subsystems to the W-Co-Cr-C system. To be able to predict which of the stable Cr-carbides forms above the solubility limits of Cr and C in the fcc phase the respective solubility of Co in Cr23C6, Cr7C3 and Cr3C2 are investigated experimentally. Furthermore, the site occupancies of Co in Cr7C3 are investigated by neutron diffraction as a first step towards a more realistic
APA, Harvard, Vancouver, ISO, and other styles
10

Ballas, Sotirios, and Rafat Peyman Malak. "Production handling damages of cemented carbide inserts." Thesis, KTH, Tillämpad maskinteknik (KTH Södertälje), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190026.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Lundin, Emma. "Simulation of Residual Stresses in Cemented Carbide." Thesis, KTH, Teknisk mekanik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-295154.

Full text
Abstract:
Cemented carbides are used in a multitude of applications within machining as they can withstand tough conditions. Therefore, the stress state in a virgin material is of interest. After cooling from the sintering stage during cemented carbide production, the large difference in coefficients of thermal expansion of the constituents results in thermal residual microstresses. These may be of significant magnitude that could influence the material's performance in later applications. The present work is therefore concerned with these thermal residual microstresses and deals with them through 2D fi
APA, Harvard, Vancouver, ISO, and other styles
12

Salmasi, Armin. "Simulation of Gradient Formation in Cemented Carbides." Thesis, KTH, Materialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192654.

Full text
Abstract:
The aim of the present work is to study the formation of the cubic carbide phase (gamma phase) free gradient zone and the gamma cone structure at the edges of gradient sintered cemented carbides. Four types of cemented carbides; WCTi(C,N)-Co, WC-Ti(C,N)-Ni, WC-Ti(C,N)-Fe, WC-(Ti,Ta,NB)(C,N)-Co were gradient sintered and the thicknesses of the gradients were measured. Formation of the gradients is simulated and the simulations results are compared with experimental data. For all of the one-dimensional simulations, the DICTRA [1] software is used. The two-dimensional simulations are carried out
APA, Harvard, Vancouver, ISO, and other styles
13

Abdulla, Ali Abdulhussein 1967. "Testing and constitutive modeling of cemented soils." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/186066.

Full text
Abstract:
The behavior of cemented sands is examined experimentally and theoretically in this study. The first segment of the investigation involves an extensive laboratory program to examine the effects of slenderness ratio, effects of cementation, and effects of confining pressure on the stress-strain curves of cemented sands. Results show that specimens with slenderness ratio of 1.5 or greater exhibit lower strength, higher dilatation rates, and relatively brittle behavior when compared to samples with slenderness ratio of 1. Furthermore, cemented sands have an essentially straight line Mohr-Coulomb
APA, Harvard, Vancouver, ISO, and other styles
14

Petersson, Anders. "Cemented Carbide Sintering : Constitutive Relations and Microstructural Evolution." Doctoral thesis, KTH, Materials Science and Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3733.

Full text
Abstract:
<p>Cemented carbides based on tungsten carbide and cobalt arecommonly produced by a powder metallurgy route including liquidphase sintering. The pressed compact densifies to almost halfits volume during sintering due to pore elimination. Thesintering behaviour changes with material composition, such ascarbide grain size, binder fraction, carbon content andaddition of cubic carbides.</p><p>This thesis is devoted to the study of constitutivebehaviour, in particular densification, and the microstructuralevolution during cemented carbide sintering. Dimensionalchanges are monitored using dilatometr
APA, Harvard, Vancouver, ISO, and other styles
15

Hosa, Aleksandra Maria. "Modelling porosity and permeability in early cemented carbonates." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/16181.

Full text
Abstract:
Cabonate-hosted hydrocarbon reservoirs will play an increasingly important role in the energy supply, as 60% of the world's remaining hydrocarbon resources are trapped within carbonate rocks. The properties of carbonates are controlled by deposition and diagenesis, which includes calcite cementation that begins immediately after deposition and may have a strong impact on subsequent diagenetic pathways. This thesis aims to understand the impact of early calcite cementation on reservoir properties through object-based modelling and Lattice Boltzmann ow simulation to obtain permeability. A Bayesi
APA, Harvard, Vancouver, ISO, and other styles
16

Elhadayri, Farj Civil &amp Environmental Engineering Faculty of Engineering UNSW. "Experimental investigation static liquefaction of lightly cemented sands." Awarded by:University of New South Wales. Civil & Environmental Engineering, 2008. http://handle.unsw.edu.au/1959.4/43104.

Full text
Abstract:
An experimental investigation was conducted on the static liquefaction behaviour of very loose lightly cemented sands. Undrained and drained triaxial compression tests, one dimensional consolidation, high stress compression, and unconfined compression tests were performed on artificially prepared lightly cemented loose samples with cement-sand ratios of 2, 4 and 6%. Additional tests were also conducted on uncemented samples prepared at the same initial void ratio as the cemented samples. Besides the influence of degree of cementation, the effects of void ratio and confining pressure on the li
APA, Harvard, Vancouver, ISO, and other styles
17

Cuccovillo, Teresa. "Shear behaviour and stiffness of naturally cemented sands." Thesis, City University London, 1995. http://openaccess.city.ac.uk/7770/.

Full text
Abstract:
The behaviour of natural soils is highly influenced by structural features arising from their geological history and was recognised to lie outside current frameworks which account only for the stress-volume state of the soil. The objective of the research was to compare the shear behaviour and stiffness of two naturally cemented sands: a calcarenite with relatively low densities, weak particles and strong bonding and a silica sandstone with high densities, strong particles and weak bonding. Comparative studies were also undertaken on their corresponding reconstituted soils and on an artificial
APA, Harvard, Vancouver, ISO, and other styles
18

Crawford, Ross William. "Focal femoral osteolysis in cemented total hip replacement." Thesis, University of Oxford, 2000. http://ora.ox.ac.uk/objects/uuid:67914dbd-6405-41a3-b4d6-6baeb8bbf0bf.

Full text
Abstract:
As implant survival extends into the second and third decades focal osteolysis around cemented femoral components in total hip replacement is emerging as an important failure mechanism. Whilst the problem of focal osteolysis is well recognised, there are many aspects of its development which are poorly understood. The broad aim of this thesis is to try to provide some insights into how, why and where focal osteolysis develops around the cemented femoral component. There are broadly two sections to this thesis, chapters 2-5 present clinical and geometrical studies and chapters 6-10 a series of
APA, Harvard, Vancouver, ISO, and other styles
19

Engman, Alexander. "Mechanical properties of bulk alloys and cemented carbides." Thesis, KTH, Materialvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230897.

Full text
Abstract:
The usage of cobalt (Co) as binder phase material in cemented carbides has been questioned becauseof the potential health hazards associated with cobalt particle inhalation. Cobalt is used because ofits excellent adhesive and wetting properties, combined with adequate mechanical properties. Thepurpose of this work is to investigate the mechanical properties of Fe-Ni bulk alloys and WC-Cocemented carbides using Integrated Computational Materials Engineering (ICME) methods com-bined with FEM data. The report investigates the mechanical properties of several bulk alloys inthe Fe-Ni system as a fu
APA, Harvard, Vancouver, ISO, and other styles
20

Owais, Tariq Muhammad. "Impact of pressure on Sintering of Cemented Carbides." Thesis, KTH, Materialvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-123170.

Full text
Abstract:
In this Master Thesis work, the effect of pressure on sintering of cemented carbides is investigated. Special focus hasbeen given to the residual porosity after sintering. It is well known that sintering shrinkage depends on binder phasecontent, grain size, temperature and pressure. Thus 4 different cemented carbides grades were selected. The gradeswere pressed into standard products and TRS (Tensile Rupture Strength) rods with two different shrinkage factors.These were then sintered at different pressures and temperatures. Thereafter the impact of pressure on propertiessuch as Density, Coerci
APA, Harvard, Vancouver, ISO, and other styles
21

Kerr, David Donaldson Carleton University Dissertation Engineering Mechanical. "Corrosion, erosion and oxidation of new cemented carbides." Ottawa, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
22

Tengattini, Alessandro. "A micro-mechanical study of cemented granular materials." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/13973.

Full text
Abstract:
Cemented Granular Materials (CGMs) are ubiquitous in nature. Their behaviour is driven by phenomena occurring at the scale of individual grains and cement bonds. However, the effect of this scale on the engineering response has lacked a systematic description and is rarely acknowledged in the models portraying their behaviour. This dissertation contributes to the development of a methodological framework for CGMs, relating the behaviour of individual grains to their collective response at the macroscopic scale, through a combination of analytical, experimental and numerical approaches. Analy
APA, Harvard, Vancouver, ISO, and other styles
23

Jayasinghe, Mudiyanselage Harshani Dilanka Jayasinghe. "Scaled - Down Open Stoping Under Cemented Paste Fill." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/79930.

Full text
Abstract:
The principle scope of this research was to develop relationship between stope dimensions and cemented paste fill strength. Experiments in various fill thickness to span width ratios with cemented paste fill with different mechanical properties were conducted by using a constructed scaled-down open stope. Scaled-down laboratory experiments were used to understand the mechanism of fill failure when exposure is undertaken under a relatively fresh fill mass.
APA, Harvard, Vancouver, ISO, and other styles
24

Jacobs, Jessica. "Effect of post-treatment of cemented carbide : Microstructural investigation and evaluation of mechanical properties of cemented carbide inserts for rock tool applications." Thesis, Karlstads universitet, Avdelningen för maskin- och materialteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84628.

Full text
Abstract:
Cemented carbides are used in rock tool applications by reason of their beneficial mechanical properties, i.e. a combination of high toughness, wear resistance and hardness. The cemented carbides commonly receive their hardness from tungsten carbides (WC) whereas cobalt (Co) is the dominating binder material. To obtain a beneficial balance of these desired properties, the binder phase can be strengthened by post-sintering treatment to minimize the risk of catastrophic failure. Previous work has shown that the face centered cubic (FCC) cobalt phase is stabilized by a higher degree of dissolved
APA, Harvard, Vancouver, ISO, and other styles
25

Barker, D. S. "A numerical analysis of the effect of surface finish and cement creep in cemented total hip replacement /." Title page, abstract and contents only, 1996. http://web4.library.adelaide.edu.au/theses/09ENS/09ensb255.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

Tarragó, Cifre Jose María. "Damage tolerance of cemented carbides under service-like conditions." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/403888.

Full text
Abstract:
Hardmetal industry is continuously seeking for high-performance products at reduced costs. In addition, it is strongly struggled by the high and volatile prices of raw materials. At this juncture, producers and end-users are deeply concerned in increasing the performance and enhancing service-life and reliability of engineering products, and replacing current constituents by alternative and less critical materials. Premature and unexpected fracture, together with wear, is the main damage phenomenon limiting the life in most cemented carbide applications. In the vast majority of cases such rupt
APA, Harvard, Vancouver, ISO, and other styles
27

Sandoval, Ravotti Daniela Andreina. "Small-scale testing of micromechanical response of cemented carbides." Doctoral thesis, TDX (Tesis Doctorals en Xarxa), 2019. http://hdl.handle.net/10803/668049.

Full text
Abstract:
Cemented carbides are composite materials widely used in different industry fields within applications involving wear, due to their outstanding wear resistance. The most commonly used are WC-Co grades, for Co wettability with the carbide and adhesion characteristics. Emergence of new applications, the existence of advanced characterization techniques, economic and environmental aspects, among others, encourages the development of a new cemented carbides generation containing other binding phases as Ni and Fe or alloys of them. Furthermore, Co powder has been classified as very toxic for the hu
APA, Harvard, Vancouver, ISO, and other styles
28

Leung, Shun Cheong. "The mechanical characteristics of cemented sand : particulate scale study /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202005%20LEUNGS.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Sharma, Acharya Shambhu Sagar. "Characterisation of cyclic behaviour of calcite cemented calcareous soils." University of Western Australia. School of Civil and Resource Engineering, 2004. http://theses.library.uwa.edu.au/adt-WU2005.0040.

Full text
Abstract:
[Truncated abstract] Characterising the behaviour of calcareous sediments that possess some degree of bonding between their constituents has attracted worldwide research interest in recent years. Although many recent studies have made significant contributions in delineating the behaviour of these sediments, there is still paucity of information particularly on the cyclic behaviour of cemented calcareous soils. This thesis describes in detail the characteristic features of cemented calcareous soils and proposes methods for characterising their cyclic behaviour. Two different calcareous soils
APA, Harvard, Vancouver, ISO, and other styles
30

Hyldahl, Hans Christian. "Fixation of the cemented tibial component : a radiostereometric analysis /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-683-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Salah-ud-din. "Behaviour of fibre reinforced cemented sand at high pressures." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/12545/.

Full text
Abstract:
Several well established techniques of soil stabilisation and soil reinforcement are available to improve properties of geotechnical materials. However, the addition of fibre into soils has its unique potential as a reinforcing agent. This is because a friction between fibre and soil particles increases the bonding between the particles of soils and this can improve the plasticity, stress-strain behaviour and failure characteristics of both cemented and uncemented soils. It also reduces the brittleness of the cemented sand. Numerous experiments on fibre-reinforced granular materials have been
APA, Harvard, Vancouver, ISO, and other styles
32

Emad, Muhammad Zaka. "Dynamic performance of cemented rockfill under blast-induced vibrations." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121473.

Full text
Abstract:
In this thesis, a new methodology for the design of CRF under static and dynamic loading conditions is developed. First a comprehensive literature review of the backfill material is accomplished which included a review of CRF operations and laboratory testing programs. This is followed by a review of numerical modelling studies performed on CRF. Based on the findings from literature review, two numerical models for CRF are developed using FLAC3D code. One of the models considers stopes to be inclined at about 67 degrees and the other considers vertical stopes. The numerical models are then use
APA, Harvard, Vancouver, ISO, and other styles
33

Mollema, Jan Willem. "EXPERIMENTAL STUDY TOWARDS ALTERNATIVE WAYS OF MACHINING CEMENTED CARBIDE." Thesis, KTH, Industriell produktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147575.

Full text
Abstract:
Sandvik Coromant is a leading supplier of tools for the metalworking industry. Sandvik Coromant launches every year thousands of new articles. A number of manufacturing techniques are available for single piece production of tungsten carbide inserts. These methods have their advantages and their disadvantages. Some of these disadvantages might be covered by using milling, however, milling tungsten carbide is hard. An interesting aspect of brittle materials that is researched over the last years is that its properties can be changed locally by applying a large hydrostatic pressure. By doing thi
APA, Harvard, Vancouver, ISO, and other styles
34

Bull, Andrew. "Temperature Dependence of the Leachability of Cemented Paste Backfill." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/38866.

Full text
Abstract:
Underground mining is a mineral acquisition technique that is critical to global economies, and human technological advancements. As shallow resource reserves are depleted, mine depths are increasing to accommodate global mineral demand. Increases in mine throughputs and excavation depths pose increased environmental concerns. Tailings surface disposal, and underground mine support are two considerable environmental and geotechnical factors of concern in current day mining. Underground waste disposal has been adopted by the mining industry in many forms. Cemented paste backfill (CPB) is a comm
APA, Harvard, Vancouver, ISO, and other styles
35

Sipola, Josefin. "Quality Management during Sintering of Cemented Carbides and Cermets." Thesis, Uppsala universitet, Oorganisk kemi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-253946.

Full text
Abstract:
The magnetic properties, coercivity, Hc, and weight-specific magnetic saturation, CoM, are two important quality characteristics in cemented carbides and ceramic metals, cermets. These properties give information about grain size and binder phase content, and are influenced by the different stages in the sintering process. This master thesis aim to investigate how the magnetic properties in cemented carbides are influenced by the top temperature during sintering and how the sintering processes used for cermets can be optimized in order to gain better magnetic properties in the final products.
APA, Harvard, Vancouver, ISO, and other styles
36

Oliveira, Alex Duarte de. "Soil mechanical behavior artificially cemented: essays modeling and application." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15769.

Full text
Abstract:
Considering the similarity between the mechanical behavior of artificially cemented soils and rock masses, this study proposes a methodology to obtain the envelopes resistance of artificially cemented soils, using the Hoek-Brown failure criterion. The proposed methodology consists basically in performing two triaxial tests, with the soil non-cemented and cemented with a high cement content, and estimate the strength envelopes for intermediate cement contents, using the equations presented in this research. To develop the methodology, initially, a number of unconfined compression tests and tria
APA, Harvard, Vancouver, ISO, and other styles
37

Patankar, Isha Anirudha. "Influence of slurry viscosity on cemented carbide powder properties." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-286893.

Full text
Abstract:
Cemented carbide powder production is the first step in the manufacturing of cemented carbide inserts.The quality of the powder affects the successive process steps in the production of the cemented carbide inserts. The powder is produced by spray drying of a slurry. The slurry consists of polymer, water, ethanol, and dry components. The operating conditions of the spray dryer have been studied greatly to optimize the powder properties but less is known about the influence of the slurry on the powder. This work examines the effect of slurry composition on the cemented carbide powder properties
APA, Harvard, Vancouver, ISO, and other styles
38

Berglund, Lina. "The Effect of Cooling Rate on Sintered Cemented Carbides." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288541.

Full text
Abstract:
Magnetic measurements are useful tools for quality control of cemented carbides. Previous work at Sandvik Mining and Rock Technology has shown that the coercivity increases with increased cooling rate during sintering for a specific grade.  This study aims to investigate why the coercivity changes with the cooling rate and if this is true for other cemented carbide grades as well. Three different cemented carbide grades were sintered with different cooling rates and evaluated with coercivity, Cobalt-magnetic saturation and hardness measurements, and with microscopy and Electron Backscatter Dif
APA, Harvard, Vancouver, ISO, and other styles
39

Duraisamy, Youventharan. "Strength And Stiffness Improvement Of Bio-Cemented Sydney Sand." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/15533.

Full text
Abstract:
This thesis explores the performance of small scale cemented soil columns produced using soil mixing with cement resulting from bacterially mediated reactions that precipitate calcium carbonate, a process often referred to as bio-cementation. Bio-cementation has received considerable research attention over the last decade as it has the potential to complement existing ground improvement techniques and mitigate environmental concerns with currently used materials. Previous research has concentrated on pumping and injection techniques because of concerns that bacteria will be unable to survive
APA, Harvard, Vancouver, ISO, and other styles
40

Nagel, Katrin [Verfasser], and Michael [Akademischer Betreuer] Morlock. "Cemented tibial tray fixation / Katrin Nagel ; Betreuer: Michael Morlock." Hamburg : Universitätsbibliothek der Technischen Universität Hamburg-Harburg, 2017. http://d-nb.info/1153466368/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Kashi, Ella. "A Model of Granular Materials Cemented by Bacterial Calcite." Thesis, Curtin University, 2019. http://hdl.handle.net/20.500.11937/82746.

Full text
Abstract:
Nature aggregates granular materials such as sand, silt and clay into form beach rocks, and other forms of microbialites. A common bio-geo-chemical cementation occurs due to the mineralization of calcium through bacterial enzymatic action, often called Microbial Induced Calcium Carbonate Precipitation (MICP). It is a sustainable construction method. Experimental and Numerical models are presented to study the aggregated granular materials formed due to MICP. The models are applied to investigate different levels of aggregation of sand. The numerical results are compared against experiments and
APA, Harvard, Vancouver, ISO, and other styles
42

Tsoi, Wa Yeung. "Constitutive model development for lightly cemented scrap rubber tire chips /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202005%20TSOI.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Ma, Chun Hung. "Signatures of acoustic emission and bond breakages in cemented sands /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202007%20MA.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Beste, Ulrik. "On the Nature of Cemented Carbide Wear in Rock Drilling." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4223.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Marri, Amanullah. "The mechanical behaviour of cemented granular materials at high pressures." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11670/.

Full text
Abstract:
The mechanical behaviour of cemented granular materials has been an important topic in geotechnical engineering since decades. Historically, most research on ce-mented granular materials has been performed at relatively low confining pressures. Problems relating to cemented granular materials at high-pressure are still not fully understood. However, understanding of the behaviour of cemented granular materials at high-pressure is highly important in deep foundations, particularly for offshore piling, deep mine shafts, high earth dams, and oil-bearing strata. To address the problem, artificiall
APA, Harvard, Vancouver, ISO, and other styles
46

Larsson, Niklas. "Gradient formation in cemented carbides with 85Ni:15Fe-binder phase." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-256503.

Full text
Abstract:
In today’s inserts used for metal cutting the binder phase consists of cobalt (Co).However, EU’s REACH programme and the U.S’s National Toxicity Programme(NTP) classified Co as toxic/carcinogenic. Therefore, there is a strong need toinvestigate alternative binder phases. This thesis covers sintering and characterisationof cemented carbide with a binder phase consisting of nickel (Ni) and iron (Fe) withthe composition of 85Ni:15Fe. The aim was to study the gradient formation of turninginsert and find sintering processes to achieve a gradient structure with the targetedthickness of 26 microns. S
APA, Harvard, Vancouver, ISO, and other styles
47

Harper, Elizabeth M. "The evolution of the cemented habit in the bivalved molluscs." Thesis, Open University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293045.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Walbrühl, Martin. "ICME guided development of cemented carbides with alternative binder systems." Doctoral thesis, KTH, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214108.

Full text
Abstract:
The development of alternative binder systems for tungsten carbide (WC) based cemented carbides has again become of relevance due to possible changes in EU regulations regarding the use of Cobalt (Co). A framework for the ICME (Integrated Computational Materials Engineering) based Materials Design is presented to accelerate the development of alternative binder systems. Part one of this work deals with the design of the cemented carbide composite hardness. It has been shown that the intrinsic binder hardness is comparable to a bulk metal alloy and that based on the binder solubilities a solid
APA, Harvard, Vancouver, ISO, and other styles
49

Al-Ghanem, Abdulhakim M. F. "Factors affecting the strength characteristics of calcium-carbonate - cemented soils." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184645.

Full text
Abstract:
The factors which affect the engineering properties of calcium carbonate cemented soil are examined. The influence of calcium carbonate content, molding moisture content, and confining pressure on the strength characteristics of two types of soil is investigated in two distinct phases of the research. Type A soil, obtained from the University of Arizona Campbell Avenue Farm in Tucson, was used for the artificially cemented specimen stage. It is composed of sand and silt-size particles with some clay and is virtually free of calcium carbonate in its natural state. Sierrita soil, obtained from t
APA, Harvard, Vancouver, ISO, and other styles
50

Emanuelli, Lorena. "Study of the properties of cemented carbides from industrial production." Doctoral thesis, Università degli studi di Trento, 2018. https://hdl.handle.net/11572/368569.

Full text
Abstract:
Cemented carbides are composite materials formed by high amount of WC bonded by a soft phase, usually Co. They are used in many applications, such as drawing dies, cutting tools and hot rolls due to theirs remarkable properties of high hardness and wear resistance. Mechanical properties are strongly related to microstructure, namely the binder amount and the carbide grain size. Increasing the binder content and the carbide grain size, the hardness decreases ad the fracture toughness increases. In this PhD, the correlations between the mechanical properties of WC-Co and the microstructural char
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'Cemented' for other source types:
Journal articles Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography