Results 91 to 100 of about 9,594 (227)

Ammonium hydroxide activation of metakaolin and engineered additives for the production of mullite ceramics

reservedL’obiettivo del presente lavoro sperimentale è stato la sintesi e la caratterizzazione di materiali ceramici a base mullite, ottenuti mediante processo di attivazione alcalina debole e successivo trattamento termico a 1400°C.
DANI, ARIANNA
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Porous Mullite Ceramics Doped with WO3

Ceramics based on alumina (Al2O3) and silica (SiO2) have such properties as the high refractoriness, high bending strength and high creep resistance, good chemical and thermal stability.
Mahņicka-Goremikina, Ludmila, Švinka, Ruta, Švinka, Visvaldis   +2 more
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Wear resistance of reaction sintered alumina/mullite composites

, 2008
Alumina and alumina/mullite composites with mullite content of 0.96-8.72 vol.% were subjected to an abrasive wear test under loads of 0.1-2.0 N with a ball-on-disc apparatus.
Zhang, FC, Luo, HH, Roberts, SG, Luo, HH, Chinese Acad Sci, Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing 100083, Peoples R China. 电子邮箱地址: hhluo@semi.ac.cn   +3 more
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Mechanical and interfacial behavior of single mullite fiber and mullite fiber-based porous ceramics

, 2018
The mechanical behaviors of single mullite fiber and binder/mullite fiber interface were experimentally investigated. The growth of the mullite grains of the fiber with the increasing calcination temperature greatly affected the tensile and compression ...
Zhong Chen, Xue Dong, Guo, Anran, Jiachen Liu, Xuan Wang, Chen, Cong, Cong Chen, Liu, Jiachen, Anran Guo, Wang, Xuan, Dong, Xue, Chen, Zhong   +11 more
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Influence of SiO2/Al2O3 Stoichiometry on Mullite Formation: Synthesis and Characterization via Solid State Reaction

Muthanna Journal of Pure Science
This study investigates the effect of varying SiO2/Al2O3 weight ratios on mullite formation synthesized through a solid-state reaction route. Four samples were prepared using different alumina–silica weight ratios: S1 (2.8 g SiO2, 7.2 g Al2O3), S2 (4.7 ...
sukaina sahib
doaj   +1 more source

Processing of diphasic mullite and mullite-alumina composite precursors

, 1997
Diphasic mullite and mullite-alumina composite precursors were prepared from the silica source (Na2SiO35H20) (a cheap industrial by-product) and the alumina source (AlCl36H2O) by a coprecipitation method (aluminium nitrate and colloidal silica were ...
Minghua Zhou
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Influence of Metal Oxides Additives on the Porous Mullite Ceramics

The porous mullite ceramics doped with such metal oxides as ZrO2, WO3 and MgO in quantity of 5 wt% were prepared by slip casting method. The mullite phase was the main and dominant phase of ZrO2-, WO3- and MgO-doped samples, which were sintered at the ...
Mahņicka-Goremikina, Ludmila, Švinka, Ruta, Švinka, Visvaldis   +2 more
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Spark Plasma Sintering (SPS) to the Mullite-Zirconia Ceramics Development

This research is devoted to the investigation comparison of effect of SPS (spark plasma sintering) and conventional sintering for the mullite-ZrO2 ceramics development. Mullite-ZrO2 ceramics were produced from different time ball-milled powders.
Žilinska, Nataļja, Šperberga, Ingunda, Sedmale, Gaida Maruta, Šteins, Ints   +3 more
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Functionally Graded CVD Mullite Coatings

, 2001
Functionally graded mullite (3Al2O3.2SiO2) coatings were deposited on SiC substrates by Chemical Vapor Deposition (CVD) using the AlCl3-SiCl4-CO2-H2 system.
Vinod K. Sarin, Soumendra N. Basu
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Growth control of whiskers on the surface of alumina fibers

Nantong Daxue xuebao. Ziran kexue ban
Alumina(Al_2O3) fiber-based composite materials are widely utilized as thermal insulation materials in the aerospace industry. However, the weak interface bonding between Al_2O3 fibers and the composite matrix significantly affects the fiber ...
ZHU Yunan; MA Xiaodong; MA Xiaomin; ZHANG Wei; LIU Rong
doaj   +1 more source