Relevant bibliographies by topics / Free crystalline silica

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Free crystalline silica'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Free crystalline silica"

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Mandle, Richard J., and John W. Goodby. "Inexpensive, operationally simple flow reactor for rapid, chromatography free synthesis of siloxane based liquid crystals." Reaction Chemistry & Engineering 3, no. 4 (2018): 515–19. http://dx.doi.org/10.1039/c8re00027a.

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Smith, Deane K. "Evaluation of the detectability and quantification of respirable crystalline silica by X-ray powder diffraction methods." Powder Diffraction 12, no. 4 (1997): 200–227. http://dx.doi.org/10.1017/s0885715600009775.

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X-ray powder diffraction is one of the most sensitive methods for the analysis of crystalline forms of silica. In addition to detection and quantification, it can determine the specific crystalline species in the sample. The principal limitations of the method depend on the effective volume of the sample in the X-ray beam and the number of crystallites in the proper orientation to diffract. Detection limits are usually reported as 2 μg in thin-film filter mounts and 0.1% in bulk samples that are free of interference from associated minerals. Filter methods are most often used for air quality m
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Golbabaei, Farideh, Abdollah Gholami, Gholamheidar Teimori-Boghsani, Mehdi Yaseri, and Mojtaba Kianmehr. "Evaluation of Occupational Exposure to Silica Dust in Mining Workers in Eastern Iran." Open Environmental Research Journal 12, no. 1 (2019): 1–6. http://dx.doi.org/10.2174/1874213001912010001.

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Background and Objective: Silica dust is present in almost all mining operations and can cause various health problems such as silicosis in workers. The present study aimed to determine the total and respirable dust levels and the crystalline silica content of the soil in the breathing zone of workers in Iranian mines. Methods: This cross-sectional study was carried out in 2016-2017 on six Iranian silica mines. Dust sampling was performed according to the National Institute of Occupational Safety and Health (NIOSH) method No. 0600. The samples were collected from the respiratory zone of worker
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Zulkarnain, Iskandar, Nor Adila Mohamad Kassim, M. I. Syakir, et al. "Sustainability-Based Characteristics of Abrasives in Blasting Industry." Sustainability 13, no. 15 (2021): 8130. http://dx.doi.org/10.3390/su13158130.

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The abrasive blasting industry is identified as the most unsafe operation in terms of potential exposure to airborne crystalline silica. This is due to the free silica content in the common abrasives that are used for blasting activities. This paper will identify a sustainability-based or green blasting media to replace free silica content abrasives for blasting activities. The characteristics of sustainability-based abrasives are determined based on systematic review procedure. The combination keywords of “Abrasive blasting”, “Garnet’’, “Free Silica Media”, “Sustainable blasting”, “Eco-friend
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Ostrooumov, Mikhail, Victor Hugo Garduño Monroy, and Alise Servenay. "Mineralogical and geochemical studies of hardened subsurface layers in soils of the Azufres and Atecuaro volcanic calderas, southwestern Mexico." Canadian Journal of Soil Science 85, no. 5 (2005): 611–24. http://dx.doi.org/10.4141/s04-057.

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Free silica and halloysite-bearing hardened subsurface layers in the ash fall deposits of the Azufres and Atecuaro volcanic calderas (Michoacan State, southwestern Mexico), known as “tepetates”, have been characterized by chemical analysis, X-ray diffraction (XRD), Raman and Infrared spectrometry, optical (OM) and scanning (SEM) microscopy with energy dispersive X-ray analysis (EDXRA). Chemical analysis of these weathered and hardened formations shows the oxidation of Fe2+, enrichment of Al, Fe3+ and Ti, loss of Si, Na, Ca, K, Mg, and formation of minerals with hydroxyls groups. Tepetates are
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Park, Sung Soo, Yuin Jung, Chunfeng Xue, Renchao Che, Dongyuan Zhao, and Chang-Sik Ha. "Free-Standing Mesoporous Silica/Carbon Composite Films with Crystalline Silica Wall from Ethylene-Bridged Organosilane." Chemistry of Materials 22, no. 1 (2010): 18–26. http://dx.doi.org/10.1021/cm901684m.

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Prakova, Gospodinka, Pavlina Gidikova, Emil Slavov, Gergana Sandeva, and Spaska Stanilova. "Serum neopterin in workers exposed to inorganic dust containing free crystalline silicon dioxide." Open Medicine 4, no. 1 (2009): 104–9. http://dx.doi.org/10.2478/s11536-008-0084-0.

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AbstractThe study was conducted among 92 male workers, divided into two groups depending on workplace and level of inorganic dust containing free crystalline SiO2 in the work environment, and 43 healthy workers without exposure to dust aerosols. The measured inhalable and respirable dust concentrations, as well as the concentration of free crystalline silica (FCS) in the respirable fraction were different for the two groups, but the percentage of free crystalline silica in the respirable fraction was almost identical. Significantly higher neopterin levels were found in workers exposed to dust,
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Jeyaratnam, M., та N. G. West. "The Determination of α-Cristobalite in Airborne Dust by X-ray Diffraction - Theory and Practice". Advances in X-ray Analysis 32 (1988): 585–92. http://dx.doi.org/10.1154/s0376030800020942.

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One of the earliest occupational diseases to be recognised was silicosis, a pathological condition of the lungs caused by the inhalation of dust containing free crystalline silica. During the industrial, revolution in the UK the incidence of silicosis rose dramatically; for example in the Sheffield cutlery industry, where dry grinding of knives and forks was practised, the life expectancy of workers was reduced on average by twenty five years. At the present day there is a wide spectrum of industry in which exposure to crystalline silica, may occur; in the UK alone it is estimated that more th
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Bellomo, Chiara, Cristina Pavan, Gianluca Fiore, Guillermo Escolano-Casado, Lorenzo Mino, and Francesco Turci. "152 Top-down Preparation and Characterization of Crystalline Nanosilica for Toxicological Investigations." Annals of Work Exposures and Health 67, Supplement_1 (2023): i100—i101. http://dx.doi.org/10.1093/annweh/wxac087.247.

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Abstract Crystalline silica (CS) is a well-known human carcinogen and freshly fractured CS is strongly held to be more toxic than aged dust. Mechanical fracturing indeed generates on CS surface a specific family of Nearly-Free Silanols (NFS), a moiety that was proved to destabilize cell membranes and initiate inflammation in vivo. During milling, silica nanoparticles are also generated, however their contribution to the overall toxicity of quartz is still largely unexplored. Nanoquartz can be synthetized via bottom-up methods, but the surface chemistry of those crystals strongly differs from n
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Abid, Nasir Sadoon, Maha T. Sultan, and Jumbad H. Tomma. "New Nanocomposite Derivatives From Thiadiazole Polymers /Silica Synthesis and Characterization using Free Radical Polymerization." Ibn AL- Haitham Journal For Pure and Applied Science 32, no. 1 (2019): 27. http://dx.doi.org/10.30526/32.1.2016.

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A new class of thiadiazole /silica nanocomposites with chemical bonds between thiadiazole monomers and modified nanosilica surface were synthesized by free radical polymerization. Presence silica nanoparticles in the structure of nanocomposite showed effectively improve the physical and chemical properties of Producing polymers. A nanocomposite material with feature properties comparison with their polymers, The structure and morphology of the synthesis materials were investigated by FT-IR spectrum which display preparation new thiadiazole compounds and polymerization monomers. FT-IR showed di
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Dissertations / Theses on the topic "Free crystalline silica"

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Yang, Tzu-Ching, and 楊子慶. "Construction Workers’ Suspended Particulate Matter and Crystalline Free Silica Exposure Assessment." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/17291757605915748680.

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碩士<br>中山醫學大學<br>職業安全衛生學系碩士班<br>101<br>The object of this research was to identify the construction workers’ respirable dust and crystalline free silica exposure. Three different construction sites were selected , A sampling site, indoor construction work ;B sampling site, basement construction work and C sampling site, main frame construction work, respectively. In this study, the sampling and analysis method(CLA4003-Respirable Crystalline Free Silica) proposed by Council of Labor Affairs was used for personal and environmental sampling in three construction site. The dust collected filter pap
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Chiu, Fen-Fen, and 邱芬芬. "Exposure assessment and predictive models for respirable dust and crystalline free silica among foundry-industry workers." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/g96wd2.

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Chiang, Shu-Hsien, and 江書賢. "The Study on the Particulate Size Distribution of Crystalline Free Silica and its Hazards in the Foundry Industry." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/18701677346858403436.

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碩士<br>中國醫藥大學<br>環境醫學研究所碩士班<br>98<br>In 1997, crystalline free silica was classified by the International Agency for Research on Cancer (IARC) as a Group 1 carcinogen. Long-term exposure to free silica may cause serious injury to the respiratory system, such as the development of silicosis, bronchitis cancer, etc.. Foundry is the base of economic development in Taiwan, but its working place may generate particulates of different sizes in the fugitive dust, including the crystalline free silica. We conducted this study to comprehend the distributions of particulate concentrations and sizes at wo
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Lai, Wen-Tsan, and 賴文燦. "Poly crystalline silicon nanowire field effect transistor based biosensor for highly sensitive, label-free and real-time detection of enterovirus DNA." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/92173365812167395162.

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碩士<br>國立交通大學<br>生物科技學系<br>98<br>Enterovirus 71 (EV 71) is an important pathogen that causes higher morbidity and mortality in children around the world than those of other non-Polio enteroviruses. Its infection is neurotropic and even followed by rapid deterioration within average 3 days. The standard clinical methods for EV 71 identification require virus isolation in cell culture and reverse transcriptase polymerase chain reactions (RT-PCR). Virus isolation requires 5-10 days and hinders the subsequent treatment and disease control. Poly silicon nanowire field effect transistor has been show
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Book chapters on the topic "Free crystalline silica"

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Bhatia, Swasti, Irfan M. Khorakiwala, Kurias K. Markose, Neha Raorane, Pradeep R. Nair, and Aldrin Antony. "Optimization of TiO2 for Low-Temperature Dopant-Free Crystalline Silicon Solar Cells." In Advances in Energy Research, Vol. 1. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2666-4_18.

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Garg, Jivtesh, Nicola Bonini, and Nicola Marzari. "First-Principles Determination of Phonon Lifetimes, Mean Free Paths, and Thermal Conductivities in Crystalline Materials: Pure Silicon and Germanium." In Topics in Applied Physics. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8651-0_4.

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Mott, Sir Nevill. "Polarons." In Conduction in Non-Crystalline Materials. Oxford University PressOxford, 1993. http://dx.doi.org/10.1093/oso/9780198539797.003.0006.

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Abstract An electron in a localized state, in either a crystalline or a non-crystalline material, will always distort its surroundings to some extent. For shallow donors in silicon and germanium, and for localized states in band tails, the radius of the localized state is normally large and the distortion consequently small; it is usually neglected, though this is not the case for deep levels. However, even for a free electron in a conduction band (or a hole in a valence band), significant distortion of the surroundings can occur under certain conditions, such as large effective mass. If disto
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Bellippady, Madhura, Shivang Dinesh Parmar, Stefan Bjorklund, Shrikant Joshi, and Nicolaie Markocsan. "Process Parameter Impact on Axial Plasma Sprayed Ytterbium Disilicate Coatings for Environment Barrier Coating Applications." In Advances in Transdisciplinary Engineering. IOS Press, 2024. http://dx.doi.org/10.3233/atde240157.

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In future generation aviation, light weight, and thermally stable SiC/SiC ceramic matrix composites (CMCs) are considered the most promising structural materials to replace traditionally used Ni-based superalloys. However, in the presence of steam (a common combustion reaction product) and corrosive species (from ingestion of debris along with the intake air during take-off and landing), accelerated degradation of CMCs compromising its structural integrity is inevitable. Environmental Barrier Coatings (EBCs) are protective ceramic coatings consisting of rare earth (RE) silicates as a topcoat w
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Campbell, J., and Murat Tiryakioğlu. "Porosity Development and Modification in Al-Si Alloys: Effect of P and Sr." In Encyclopedia of Aluminum and Its Alloys. CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000435.

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The benefits of Sr additions to Al–Si alloys to modify the eutectic are often impaired by the development of porosity, sometimes to the degree that benefits are negated. Experimental reports are reviewed in this paper, suggesting an explanation in terms of the oxide population in the melt. The unmodified silicon particles are nucleated by AlP, which has in turn nucleated on oxide bifilms. The oxide bifilms, which are essentially cracks, are straightened by the crystalline growth of Si particles, leading to increased crack size and consequently reduced mechanical properties. The addition of Sr
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Conference papers on the topic "Free crystalline silica"

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Nekarda, Jan, Julian Weber, Max Mittag, et al. "FoiIMet®-Interconnect-Shingling: Latest Results of Our Silver-, Copper-, Lead-, Solder- and Adhesive-Free Cell Interconnection Technology for Crystalline Silicon Pv Based on Laser Joined Pure Aluminum Foil." In 2024 IEEE 52nd Photovoltaic Specialist Conference (PVSC). IEEE, 2024. http://dx.doi.org/10.1109/pvsc57443.2024.10748778.

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Soares, S., K. Jungling, and K. Stowell. "Float Polished Quartz Substrates*." In Optical Fabrication and Testing. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oft.1990.jtua3.

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Float Polishing is a unique polishing technique developed in Japan, that produces supersmooth damage-free surfaces for electronic, optical and magnetic applications. Crystalline materials such as quartz, silicon and sapphire, polycrystalline materials such as ferrite and zinc sulfide, and amorphous materials such as fused silica and zerodur have been polished using this technique. Float polished substrates have a typical surface roughness of approximately 2 Å, with a flatness of λ/20. Float polishing is used commercially in the fabrication of ferrite recording heads, sapphire crowns for watche
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Chraska, T., K. Neufuss, J. Dubský, J. Nohava, and J. Oberste-Berghaus. "Plasma Spraying of a Novel Material with Amorphous and Nanocrystalline Microstructure." In ITSC2005, edited by E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p0830.

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Abstract A novel material has been used for plasma spraying by WSP. The material is composed of three main phases, namely corundum (aluminum oxide), baddeleyite (zirconium oxide), and glassy phase (silicon oxide). The material is a refractory and exhibits very high hardness, extremely high abrasion resistance, and chemical resistance. Conventionally, the material is fabricated by melt casting and machining. Cast tiles of the material were ground and sieved to obtain the right powder cut size for plasma spraying by water stabilized plasma torch (WSP). Both dense coatings and free standing parts
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Wu, Weiliang, Wenjie Lin, Sihua Zhong, et al. "22% efficient dopant-free interdigitated back contact silicon solar cells." In SILICONPV 2018, THE 8TH INTERNATIONAL CONFERENCE ON CRYSTALLINE SILICON PHOTOVOLTAICS. Author(s), 2018. http://dx.doi.org/10.1063/1.5049288.

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Levrat, J., K. Thomas, A. Faes, et al. "Metal-free crystalline silicon solar cells in module." In 2015 IEEE 42nd Photovoltaic Specialists Conference (PVSC). IEEE, 2015. http://dx.doi.org/10.1109/pvsc.2015.7355877.

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Abenante, Luigi. "Simultaneous determination of free-carrier absorption and rear-side reflectance in textured silicon solar cells." In SiliconPV 2021, The 11th International Conference on Crystalline Silicon Photovoltaics. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0089609.

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Georgiev, Kaloyan, Anton Trifonov, Khosro Zangeneh Kamali, Lyuben S. Petrov, Dragomir Neshev, and Ivan Buchvarov. "Optical Metasurfaces for GHz Free Space Optical Communications: Prospects and Prototype Validation." In Advanced Solid State Lasers. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/assl.2023.am1a.3.

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An all-optical modulation of light based on crystalline silicon metasurfaces is presented, where a carrier-driven absolute amplitude modulation of over 72% is demonstrated with about 100 ps response times.
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Singh, Aashish. "Free charge carrier induced refractive index modulation of crystalline silicon." In 2010 7th IEEE International Conference on Group IV Photonics (GFP). IEEE, 2010. http://dx.doi.org/10.1109/group4.2010.5643412.

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VerNooy, Paul, Charlie Torardi, Zhigang Li, et al. "High-efficiency lead-free silver pastes for crystalline silicon solar cells." In 2012 IEEE 38th Photovoltaic Specialists Conference (PVSC). IEEE, 2012. http://dx.doi.org/10.1109/pvsc.2012.6318050.

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Yoo, Byung-Wook, Yun-Ho Jang, Kyoungsik Yu, Jae-Hyoung Park, and Yong-Kweon Kim. "Drift-Free Single Crystalline Silicon Micromirror with Floating Field Limiting Shields." In 2007 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics. IEEE, 2007. http://dx.doi.org/10.1109/omems.2007.4373850.

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