Results 31 to 40 of about 1,093 (197)

Mechanical Properties of Mullite-SiC Whisker Composites

Journal of the Ceramic Society of Japan, 1989
Mechanical properties of hot-pressed mullite-SiC whisker composites were studied in relation to the whisker content and chemical composition of matrix. Grain growth of mullite was suppressed by the existence of SiC whisker in the matrix, but the densification was not inhibited by the loading of whisker up to 30 vol%.
Takeshi KUMAZAWA, Shigetoshi OHTA, Hideyo TABATA, Shuzo KANZAKI   +3 more
openaire   +2 more sources

In-situ mullite whisker reinforced SiC porous ceramics with whiskers and bonding layers synchronously growing:Using CaF₂ as a temperature-controlled whisker formation switch [PDF]

, 2023
Mullite-bonded SiC porous ceramics are of potential in hot gas infiltration while the insufficient mechanical performance limits its application. In-situ mullite whisker reinforcement is a potential solution but the formation temperature mismatch between
Han, Guifang, Li, Zihe, Sun, Jian, Zhang, Jingde, Zhang, Xu   +4 more
core   +1 more source

Mullite production by valorization of a hydrodesulphurization catalyst waste

Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Due to its high alumina and silica content, Ni–Mo catalyst waste is a suitable, amorphous raw material for producing aluminosilicate phases. Thermal treatment of the waste at 1200°C for 30 min yields a material containing 50 wt.% mullite and exhibiting 96% overall crystallinity. The addition of amorphous silica significantly enhances mullite formation:
Rafael Carrizosa, Agenor De Noni Jr., Aurora López‐Delgado, Isabel Padilla, Maximina Romero   +4 more
wiley   +1 more source

The interaction between Fe2O3‐bearing molten slag and MgO‐C refractory containing calcium magnesium aluminate antioxidant

Journal of the American Ceramic Society, Volume 108, Issue 10, October 2025.
Abstract The interaction behavior between iron oxide‐bearing slags and carbon‐bonded MgO refractory (MgO‐C) containing calcium magnesium aluminate (CMA) was investigated at 1400°C, 1500°C, and 1600°C. After the iron oxide was reduced by the carbon from the MgO‐C refractory, a significant amount of MgO and metallic iron was observed to precipitate and ...
Xingwen Wei, Anton Yehorov, Manuel Loeffler, Yuri Korobeinikov, Olga Fabrichnaya, Seetharaman Sridhar, Olena Volkova   +6 more
wiley   +1 more source

Preparação de mulita a partir do mineral topázio Preparation of mullite from topaz

Cerâmica, 2004
Mulita é o único composto termodinamicamente estável no sistema binário Al2O3 - SiO2, na faixa 70,5 a 74,0% em peso de Al2O3. Mulita metaestável na faixa de 74 a 83,6% de Al2O3, entretanto, pode ser obtida.
R. R. Monteiro, A. C. S. Sabioni, G.M. da Costa   +2 more
doaj   +1 more source

Mechanical Properties of Alumina-Mullite Whisker Composites

Journal of the Ceramic Society of Japan, 1993
Composite alumina ceramics with a mullite whisker content of up to 30vol% were fabricated by hot-pressing at 1400 to 1600°C under 30MPa for 30min. The bending strength, hardness, elastic modulus and fracture toughness of the hot-pressed bodies were investigated. Considerably dense alumina-mullite whisker composite ceramics were obtained by sintering at
Nobuyuki TAMARI, Isao KONDOH, Takahiro TANAKA, Hiroaki KATSUKI   +3 more
openaire   +2 more sources

Finite Element Analysis of R‐Curve Behavior in Ceramics Using the Damage Model Based on the Cohesive‐Zone Relationship

International Journal of Ceramic Engineering &Science, Volume 7, Issue 5, September 2025.
ABSTRACT The evaluation of the R‐curve behavior of ceramics, which is characterized by an increase in crack resistance with crack propagation, is crucial for advancing their implementation in engineering applications that require high reliability.
Mostafizur Rahman, Taiyo Maeda, Toshio Osada, Shingo Ozaki   +3 more
wiley   +1 more source

Method of making a ceramic with preferential oxygen reactive layer [PDF]

, 2003
A method of forming an article. The method comprises forming a silicon-based substrate that is oxidizable by reaction with an oxidant to form at least one gaseous product and applying an intermediate layer/coating onto the substrate, wherein the ...
Luthra, Krishan Lal, Wang, Hongyu
core   +1 more source

Impact of Different Types of Dust on Solar Glass Transmittance and PV Module Performance

Progress in Photovoltaics: Research and Applications, Volume 33, Issue 8, Page 844-853, August 2025.
This study characterizes the soiling losses between four natural dusts. It identifies significant differences in soiling losses, showing that a particular dust from Thailand has a 12.8% higher transmittance loss slope. In addition, measured slopes of Isc losses are consistently lower than calculated values, with an average discrepancy of 16.6%.
Guido Willers, Nattakarn Sakarapunthip, Klemens Ilse, Surawut Chuangchote, Ralph Gottschalg   +4 more
wiley   +1 more source

Synthetic crossed-lamellar microstructures in oxide ceramics [PDF]

, 2005
A process has been developed to produce a crossed-lamellar-type microstructure in mullite combining tape casting, oriented lamination, and templated grain growth.
Faber, K. T., Kaul, Vikram S.
core