Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Karl Jakus"'
Publikováno v:
Journal of the American Ceramic Society. 67:471-475
L'exposition a court terme de Si 3 N 4 a des temperatures superieures a 800°C dans une atmosphere oxydante accroit la resistance mecanique a temperature ambiante et elimine la distribution de resistance tronquee provoquee par l'essai a temperature a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26506639b8e116321c5ce9854b61be3d
https://doi.org/10.1111/j.1151-2916.1984.tb19637.x
https://doi.org/10.1111/j.1151-2916.1984.tb19637.x
Autor:
Karl Jakus, Sandeepan Bhattacharya
Publikováno v:
Journal of the American Ceramic Society. 81:460-464
An analysis is performed to predict the densification during and the state of residual stress after hot pressing of annular alumina/zirconia (3Y-TZP) composites. The objective of the analysis was to study the residual stresses resulting from stress g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bf4d8ce4813aa69cc939b1db426f7c1
https://doi.org/10.1111/j.1151-2916.1998.tb02362.x
https://doi.org/10.1111/j.1151-2916.1998.tb02362.x
Publikováno v:
Journal of the American Ceramic Society. 80:509-512
The load supported by crack wake bridges was studied in glassy alumina at 1240°C using short double cantilever beam specimens with a rear notch wedge. Direct observation of fracture surfaces revealed the sizes and shapes of the high-temperature brid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::182f9cc91fc76d638456280826e3a06d
https://doi.org/10.1111/j.1151-2916.1997.tb02860.x
https://doi.org/10.1111/j.1151-2916.1997.tb02860.x
Publikováno v:
Journal of the American Ceramic Society. 80:2445-2448
Stress intensity factors are estimated for a spherical cap surrounded by a peripheral crack in a semi-infinite body. Using finite element analysis, the stress concentration of a spherical cap was determined as a function of the radius and depth of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5f3558717a42a04f816e73a583143ac
https://doi.org/10.1111/j.1151-2916.1997.tb03142.x
https://doi.org/10.1111/j.1151-2916.1997.tb03142.x
Publikováno v:
Journal of Materials Science. 32:6183-6189
Densification of ceramic powders by power-law creep during pressure-assisted compaction is analysed. The proposed densification model is based on two existing power-law creep densification models: one for a relative density up to 0.9 (stage I) and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28ac247ee04fa24d8c3a76b53dac4f1c
https://doi.org/10.1023/a:1018668606955
https://doi.org/10.1023/a:1018668606955
Publikováno v:
Journal of Materials Research. 12:210-217
When a ceramic material creeps under a localized stress and then cools under load, a portion of the creep flow stress is retained as a residual compressive stress due to elastic rebound being constrained by the creep zone. Localized contact-creep was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff6eb251adce121bc2c49ddc6d71f40d
https://doi.org/10.1557/jmr.1997.0028
https://doi.org/10.1557/jmr.1997.0028
Publikováno v:
Acta Materialia. 44:2259-2264
The effect of temperature and subcritical crack growth on the R-curve of a 99.5% purity coarse grained alumina was studied using chevron-notched, short-bar specimens. Constant loading rate tests were used to measure toughness as a function of crack l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::429dd69302fa355b7d9eda76152a8c13
https://doi.org/10.1016/1359-6454(95)00361-4
https://doi.org/10.1016/1359-6454(95)00361-4
Publikováno v:
Journal of Materials Science. 31:2379-2384
The influence ofR-curve behaviour on the post-indentation strength of two types of alumina was studied using Hertzian indentation. Soda-lime glass was included in the study to represent a material which does not exhibitR-curve behaviour. Specimens we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c6ddc7ce89ca7bc3366d41bf2255a03
https://doi.org/10.1007/bf01152950
https://doi.org/10.1007/bf01152950
Publikováno v:
Journal of the American Ceramic Society. 78:1914-1920
Crack behavior was studied at elevated temperatures in a commercial vitreous-bonded alumina for two types of cracks : one introduced by indentation at room temperature and the other by the creep process. Indentation cracks with relatively small initi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dbaf0da7e7195c321e740f35a62219b
https://doi.org/10.1111/j.1151-2916.1995.tb08909.x
https://doi.org/10.1111/j.1151-2916.1995.tb08909.x
Publikováno v:
Journal of the American Ceramic Society. 76:33-38
Time-dependent crack bridging forces were measured at temperatures from 1150° to 1275°C in a vitreous bonded alumina using the rear-notched, short double cantilever beam technique. Glassy ligaments were observed to bridge the crack even after the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eef15a75083f6388d5f37fe569189b68
https://doi.org/10.1111/j.1151-2916.1993.tb03686.x
https://doi.org/10.1111/j.1151-2916.1993.tb03686.x