Results 21 to 30 of about 13,383 (265)

Sintering, microstructural and mechanical characterization of combustion synthesized Y2O3 and Yb3+-Y2O3

Journal of the Ceramic Society of Japan, 2009
The present work highlights the microstructural features and mechanical properties of Y2O3 prepared with and without Yb3+ doping that processed through combustion synthesis involving various organic fuels such as urea, citric acid and glycine. Properties such as powder-flow, particle packing, green density, % of shrinkage, sintered density, grain size,
Viswanathan Mangalaraja, Ramalinga, Ananthakumar, Solaiappan, Mouzon, Johanne, Lopez, Marta, Porro Camurri, Carlos, Oden, Magnus   +5 more
openaire   +4 more sources

Crystallization of microscopic Y2O3 powders by different techniques of fluidization at high temperature [PDF]

, 2006
Ahigh temperature fluidized bed reactor (HTFBR)working at 900 to 1200 ◦Chas been developed to crystallize microscopic yttria (Y2O3) powders synthesized by spray pyrolysis.
Caussat, Brigitte, Verelst, Marc, Joffin, Nicolas, Alavi, Shila   +3 more
core   +1 more source

Wettability of Y2O3: A Relative Analysis of Thermally Oxidized, Reactively Sputtered and Template Assisted Nanostructured Coatings

Nanomaterials, 2012
The wettability of reactively sputtered Y2O3, thermally oxidized Y-Y2O3 and Cd-CdO template assisted Y2O3 coatings has been studied. The wettability of as-deposited Y2O3 coatings was determined by contact angle measurements.
Natarajan T. Manikandanath, Praveen Kumar, Archana Chaudhary, Harish C. Barshilia   +3 more
doaj   +1 more source

Synthesis of Y2O3 and graphite-added copper-based hybrid composites by powder metallurgy: Mechanical properties and tribological behavior [PDF]

Science of Sintering
In the presented study, Y2O3 and graphite-reinforced Cu matrix hybrid composite materials were prepared using the powder metallurgy method. The aim is to compare the microstructure, density, hardness, and wear behavior of composites with different yttria
Birgin Pelin Çağım Tokat, Aydin Hediye, Kaya Esad   +2 more
doaj   +1 more source

Manufacturing and Macroscopic Properties of Y2O3 Coating Layer on Ceramic (AlN) Substrate Fabricated by Aerosol Deposition [PDF]

Archives of Metallurgy and Materials, 2018
This study attempted to manufacture an Y2O3 ceramic coating layer on a ceramic (AlN) substrate using aerosol deposition (AD) and investigated its macroscopic properties.
D.-Y. Wi, G.-S. Ham, S.-H. Kim, K.-A. Lee   +3 more
doaj   +1 more source

Enhancing the density of silicon carbide with the addition of nitrate-based additives [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2022
Dense monolithic silicon carbide (SiC) was successfully sintered by hot pressing at 1750ºC for 1 h under an applied pressure of 20 MPa with the addition of a nitrate-based additive. With the addition of MgO-Y2O3 and Al2O3-Y2O3 in nitrate form, a relative
Dioktyanto M., Aryanto D., Noviyanto A., Yuwono A.H., Rochman N.T.   +4 more
doaj   +1 more source

Excellent performance of W–Y2O3 composite via powder process improvement and Y2O3 refinement

Materials & Design, 2021
In this article, Y2O3-reinforced tungsten composites are fabricated by using an improved wet chemical method combined with the spark plasma sintering (SPS). Triethanolamine (TEA) surfactant addition and an appropriate calcination process are innovatively
Gang Yao, Xuepeng Liu, Zhihao Zhao, Laima Luo, Jigui Cheng, Xiang Zan, Zumin Wang, Qiu Xu, Yucheng Wu   +8 more
doaj   +1 more source

Mechanical and Tribological Behaviors of Hot-Pressed SiC/SiCw-Y2O3 Ceramics with Different Y2O3 Contents

, 2023
Sintering additives are commonly used to reduce the conditions required for densification in composite ceramics without compromising their performances simultaneously.
Shichang Chen, Zhibiao Tu, Shaohua Zhang, Longqi Ding, Meng Zhang, Jinfang Wang, Huijun Chan, Ling Shao, Nengyong Ye, Xiyu Liu, Fengqing Wu, Liu Zhu, Sheng Dai   +12 more
core   +1 more source

IMPACT OF RARE EARTH OXIDES ON THE STRUCTURE AND ELECTRICAL PROPERTIES OF ZnO-Bi2O3−BASED VARISTOR CERAMICS: A COMPARATIVE ANALYSIS OF Y2O3 AND CeO2

Tạp chí Khoa học
Zinc oxide (ZnO)-based varistor ceramics, incorporating varying amounts of Y2O3/CeO2, were fabricated through a twostep solid-state reaction method involving pre-calcination and subsequent sintering processes.
Nguyen Trung Huy, Nguyen Van Trang, Cao Thi Hong, Nguyen Thi Xuyen, Vo Thi Kieu Anh, Nguyen Quang Duong, Nguyen Tuan Anh, Le Dang Quang, Do Quang Tham*
doaj   +1 more source

Investigations on the microstructure and properties of yttria and silicon carbide reinforced aluminium composites

Heliyon, 2023
Powder Metallurgy (PM) was used to synthesize SiC (0, 5, 10, 15 & 20 wt%) and 1 wt% Yttria (Y2O3) reinforced aluminium (Al) metal matrix composites.
P.P. Shantharaman, V. Anandakrishnan, S. Sathish, M. Ravichandran, R. Naveenkumar, S. Jayasathyakawin, S. Rajesh   +6 more
doaj   +1 more source