Zobrazeno 1 - 10
of 60
pro vyhledávání: '"R. R. Wills"'
Autor:
J. Kevin McCoy, R. R. Wills
Publikováno v:
Proceedings of the 9th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings
On presente une technique dilatometrique permettant d'obtenir plus de donnees que les methodes conventionnelles a partir de chaque essai de pressage isostatique chaud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8155e94616d8932bb85f6bc74457dbaa
https://doi.org/10.1002/9780470320280.ch64
https://doi.org/10.1002/9780470320280.ch64
Publikováno v:
Proceedings of the 9th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings
Introduction Despite the significant advances made in recent years in processing struc- tural ceramics, such as Si3N4 and Sic, with excellent high-temperature strength and uniformity of strength (high Weibull modulus), their relia- bility in high-per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eab4e376339dfc51349c83b8064d94ee
https://doi.org/10.1002/9780470320280.ch15
https://doi.org/10.1002/9780470320280.ch15
Autor:
R. R. Wills
Publikováno v:
Proceedings of the 2nd and 3rd Annual Conference on Composites and Advanced Materials: Ceramic and Engineering Science Proceedings, Volume 1, Issue 7/8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2b69ac7651bb5230fb217c9c9f61646
https://doi.org/10.1002/9780470291030.ch9
https://doi.org/10.1002/9780470291030.ch9
Publikováno v:
Journal of the American Ceramic Society. 60:64-67
A factorial design experiment was conducted to determine the major parameters affecting the densification of mixtures having the composition (in mol%) 50 Si3N4, 25 A12O3, and 25 A1N. Improved densities of the resulting sialon were achieved using a lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66b3228c9f3e6878dbea7dca07046a2c
https://doi.org/10.1111/j.1151-2916.1977.tb16096.x
https://doi.org/10.1111/j.1151-2916.1977.tb16096.x
Publikováno v:
Journal of Materials Science. 11:1305-1309
Examination of compositions in the system Si3N4-Y2O3-SiO2 using sintered samples revealed the existence of two regions of melting and three silicon yttrium oxynitride phases. The regions of melting occur at ∼1600° C at high SiO2 concentrations (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2583d2fdf415485d69b7c2aa7eb575d5
https://doi.org/10.1007/bf00545151
https://doi.org/10.1007/bf00545151
Publikováno v:
Journal of Materials Science. 11:1330-1334
Reproducible controlled surface flaws were introduced in reaction-bonded Si3N4 by Knoop microhardness indentation. Fracture was initiated at a single suitably oriented flaw on the tensile surface of a four-point bend specimen, and the stress required
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2a9f6861479c5ea311eb89fe678e373
https://doi.org/10.1007/bf00545154
https://doi.org/10.1007/bf00545154
Publikováno v:
Journal of Materials Science. 11:749-759
A new group of materials called the silicon lanthanide oxynitrides has been prepared by the reaction between Si3N4 and several oxides of the lanthanide series (La2O3, Sm2O3, Dy2O3, Er2O3, and Yb2O3). These oxides formed compounds of the type Si3N4 ·
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5adf0fd3a442c1278de480d4686751ad
https://doi.org/10.1007/bf01209463
https://doi.org/10.1007/bf01209463
Autor:
I. Sekercioglu, R. R. Wills
Publikováno v:
Journal of the American Ceramic Society. 62:590-593
Dense high-purity silicon aluminum oxynitride was prepared by reactive hot-pressing of an Si3N4-Al2O3-SiO2 mixture. The formation of a single-phase material was found to be critically dependent on the Si3N4 powder in the starting mixture. It is sugge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99ee79a1714fc08b292efa7e794fc5ac
https://doi.org/10.1111/j.1151-2916.1979.tb12738.x
https://doi.org/10.1111/j.1151-2916.1979.tb12738.x
Autor:
J. M. Wimmer, R. R. Wills
Publikováno v:
Journal of the American Ceramic Society. 59:437-440
Controlled surface flaws were produced in commercial reaction-densified SiC by Knoop microhardness indentation. The flaws themselves could not be observed easily, thus an etching technique was used to delineate their semielliptical shape, thereby ena
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af0f444465c7f1d7159ea156c82e4c0e
https://doi.org/10.1111/j.1151-2916.1976.tb09513.x
https://doi.org/10.1111/j.1151-2916.1976.tb09513.x
Autor:
J. A. Cunningham, R. R. Wills
Publikováno v:
Journal of Materials Science. 12:208-210
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c01919af8f6314355b2a85bedef1efc
https://doi.org/10.1007/bf00738488
https://doi.org/10.1007/bf00738488