Results 271 to 280 of about 164,543 (307)

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.
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???????????????? ?????????????????? ???????????????? ?????????? ?????????????? 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 ...
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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.
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?????????? ??-Al2O3 ???? ??????????????????? ???????????????????? ???? ?????????????????????? ?????????????????????? ???? ?????????????????? ???????????????? ?????????????????????????????????????? ??????????????

2009
?????????????? ?????????? ?????????????? ??- Al2O3 ???? ?????????????????????? ???????????????????? ???? ?????????????????? ???????????????? ?????????????????????????????????????? ?????????????? ?????? + 2 % Zn. ????????????????, ???? 30 % ???????????? ???????????????? ?? ???????? ?????????????????????? ??????????????????, ???? ???????? ????????????????
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???????????????????????? ?????????????????? ???????????????????????? ?????????????? ???? ?????????????? (??-Al2O3) ?????????? ???? ???????????????? ??????????????????

2011
?? ???????????????????????????? ?????????????????????? ?????????????? ?????????????????? ?????????????????? ?????????????????? ???????????????????????????? ???????? (?????????????????????????? Rmax ?? ?????????????? ?????????????????????? ???????? F) ?????????????????? ???????????????????? ?????????????????????????????????? ???????????????????????? ????
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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 ...
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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
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Phenomenon of Whiskers Formation in Al2O3−C Refractories

Advanced Engineering Materials, 2022
Olga Fabrichnaya, Enrico Storti, Anton Yehorov   +2 more
exaly  

Promotional Effect of La in the Three-Way Catalysis of La-Loaded Al2O3-Supported Pd Catalysts (Pd/La/Al2O3)

ACS Catalysis, 2020
Hiroyuki Asakura, Takashi Toyao, Zen Maeno   +2 more
exaly  

Investigation of the systems Al2O3-Sm2O3 and Al2O3-Gd2O3

The Soviet Journal of Atomic Energy, 1961
S. G. Tresvyatskii, V. I. Kushakovskii, V. S. Belevantsev   +2 more
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