Results 281 to 290 of about 138,401 (319)

In-Situ Reaction Depposition Coating of LaPO4 on Al2O3 Fabric Cloth for Al2O3/Al2O3 Composites

2008
In-situ reaction deposition, a liquid-phase coating method, was applied to coat monazite (LaPO 4 ) on alumina fabric cloth for improving the uniformity of coating. Coating was characterized for thickness, microstructure and composition by SEM, XRD and EDS. Stability of the coating was estimated by heat exposure at 1200 °C for 48 h in air.
Toyohiko Yano, Pengyuan Lee, Masamitsu Imai   +2 more
openaire   +1 more source

Surface, grain-boundary and interfacial energies in Al2O3 and Al2O3-Sn, Al2O3-Co systems

Journal of Materials Science, 1985
Using the multiphase equilibrium method for the measurement of contact angles, the surface and grain-boundary energies of polycrystalline Al2O3 in the temperature range of 1473 to 1923 K were determined. Linear temperature functions were obtained by extrapolation for both quantities between absolute zero and the melting point of Al2O3.
openaire   +1 more source

Tunnelling cracks in Al2O3/Al2O3–ZrO2 layered composites

Journal of the European Ceramic Society, 2007
Two sizes of symmetrical, five-layered ceramic composites with alumina surface layers and alumina–zirconia inner layers were produced. Each composite had the same sequence and composition of individual layers; however, the measured strength of the large-sized sample was only 76 MPa to 115 MPa.
S. Beranič Klopčič, M. Ambrožič, T. Kosmač, S. Novak   +3 more
openaire   +1 more source

???????????????? ?????????????????? ???????????????? ?????????? ?????????????? Al2O3???HfO2???Gd2O3 ?? ??????????????, ???? ???????????? ???? Al2O3

2008
A liquidus surface for the Al2O3-rich corner of the Al2O3???HfO2???Gd2O3 system is constructed. No ternary compounds were found in the system under study. The ternary transformation point and the ternary eutectic point are discovered. The ternary eutectic Al2O3???GdAlO3???F-HfO2 exhibits the cooperative phase growing mechanism which allows one to ...
openaire   +1 more source

Reaction Sites on the Al2O3 Support of Pd/Al2O3

1993
Abstract The hydrogenation of CO adsorbed on Pd/Al 2 O 3 can proceed through the formation of a methoxy species on the Al 2 O 3 support by spillover. The rate of formation of the methoxy species and the effect of coadsorbed water on CH 3 O hydrogenation are presented.
openaire   +1 more source

?????????? ??-Al2O3 ???? ??????????????????? ???????????????????? ???? ?????????????????????? ?????????????????????? ???? ?????????????????? ???????????????? ?????????????????????????????????????? ??????????????

2009
?????????????? ?????????? ?????????????? ??- Al2O3 ???? ?????????????????????? ???????????????????? ???? ?????????????????? ???????????????? ?????????????????????????????????????? ?????????????? ?????? + 2 % Zn. ????????????????, ???? 30 % ???????????? ???????????????? ?? ???????? ?????????????????????? ??????????????????, ???? ???????? ????????????????
openaire   +1 more source

ПОЛУЧЕНИЕ, СТРУКТУРА И ПРОЧНОСТЬ МОНОКРИСТАЛЛИЧЕСКИХ (Al2O3, Y3Al5O12) И ЭВТЕКТИЧЕСКИХ (Al2O3-Y3Al5O12, Al2O3-Er3Al5O12, Al2O3-GdAlO3) ВОЛОКОН

2019
Разработана методика группового выращивания из расплава монокристаллических (сапфир, иттрийалюминиевый гранат), а также эвтектических двойных гранатсодержащих (Al2O3Y3Al5O12, Al2O3Er3Al5O12) и перовскит содержащих (Al2O3GdAlO3) волокон диаметром от 150 мкм, обладающих высокой прочностью, термоокислительной стойкостью и сопротивлением ползучести при ...
openaire   +1 more source

???????????????????????? ?????????????????? ???????????????????????? ?????????????? ???? ?????????????? (??-Al2O3) ?????????? ???? ???????????????? ??????????????????

2011
?? ???????????????????????????? ?????????????????????? ?????????????? ?????????????????? ?????????????????? ?????????????????? ???????????????????????????? ???????? (?????????????????????????? Rmax ?? ?????????????? ?????????????????????? ???????? F) ?????????????????? ???????????????????? ?????????????????????????????????? ???????????????????????? ????
openaire   +1 more source

Microstructure refinement-homogenization and flexural strength improvement of Al2O3 ceramics fabricated by DLP-stereolithography integrated with chemical precipitation coating process

Journal of Advanced Ceramics, 2021
Guanglin Nie, Pengfei Sheng, Fei Zuo
exaly  

Kinetic study of glycerol hydrodeoxygenation on Al2O3 and NiMo2C/Al2O3 catalysts

Fuel, 2022
Rafael Belo Duarte, Marcos Lúcio Corazza, João Lourenço Castagnari Willimann Pimenta, Luiz Mario de Matos Jorge   +3 more
openaire   +1 more source