Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Richard C. Bradt"'
Autor:
Richard C. Bradt
Publikováno v:
Journal of the European Ceramic Society. 34:3255-3262
The mirror region following the fracture initiation site is considered by applying fracture mechanics principles along with experimental observations of the crack velocity at the formation of the mirror mist boundary. Several issues regarding this cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22af4c62f76313d73060edaf48a8ffc7
https://doi.org/10.1016/j.jeurceramsoc.2014.04.036
https://doi.org/10.1016/j.jeurceramsoc.2014.04.036
Autor:
Richard C. Bradt, Lei Zhang
Publikováno v:
Journal of North Carolina Academy of Science. 129:180-183
The Indentation Size Effect (ISE) in Fused Silica and Crystalline Quartz were measured by both Knoop and Vicker indenters and both exhibited a crossover for the different indenters at about the same indentation load. The crossover can be explained by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10d6798521971367a4e0dfeee62f61bc
https://doi.org/10.7572/2167-5880-129.4.180
https://doi.org/10.7572/2167-5880-129.4.180
Autor:
Richard C. Bradt
Publikováno v:
Journal of Non-Crystalline Solids. 358:3459-3464
The crack patterns of glass which form when a propagating crack intersects a free surface are considered in terms of the (G,R) vs ∆C universal energy diagram for crack growth after Broek (1974) [1]. After briefly reviewing its derivation, the diagr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b84a08aa802d8b01041d13cad04bb82a
https://doi.org/10.1016/j.jnoncrysol.2012.01.067
https://doi.org/10.1016/j.jnoncrysol.2012.01.067
Publikováno v:
Ceramics International. 38:5369-5375
Thermal shock damage resistance in advanced refractories depends on the crack interactions with the microstructure. These energy dissipation mechanisms during crack propagation are not directly considered in the original classical thermal shock model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba1a850a360daa204a7f0d68c984c712
https://doi.org/10.1016/j.ceramint.2012.03.046
https://doi.org/10.1016/j.ceramint.2012.03.046
Autor:
Richard C. Bradt
Publikováno v:
Journal of Failure Analysis and Prevention. 11:79-96
The topographical features which appear on the fracture surfaces of broken glass objects and the resulting crack patterns which develop are Nature’s documentation of the fracture event. They are considered after a brief discussion of glass strength
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3064b6456a292edd808e7d9dece72c9
https://doi.org/10.1007/s11668-011-9432-5
https://doi.org/10.1007/s11668-011-9432-5
Autor:
Richard C. Bradt
Publikováno v:
Key Engineering Materials. 409:28-42
Evidence regarding a fracture event is absolutely and definitively recorded by Nature during the fracture process. That record is in the form of the general macrocrack pattern and the surface topological features of the newly formed fracture surface.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::963352d74d15a94ddd2f945ab1100a44
https://doi.org/10.4028/www.scientific.net/kem.409.28
https://doi.org/10.4028/www.scientific.net/kem.409.28
Autor:
George D. Quinn, Richard C. Bradt
Publikováno v:
Journal of the American Ceramic Society. 90:673-680
The Vickers indentation fracture toughness test, or VIF, is addressed by considering its origins and the numerous equations that have been applied along with the technique to estimate the fracture resistance, or the KIc of ceramics. Initiation and pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::512b91ac2efc0f648a8bc7bad0597a84
https://doi.org/10.1111/j.1551-2916.2006.01482.x
https://doi.org/10.1111/j.1551-2916.2006.01482.x
Publikováno v:
Materials Science Forum. 509:199-204
Cordierite has been synthesized by heating mixtures of kyanite and talc, using kyanite powders of two different sizes. The reaction is studied by thermogravimetric and differential thermal analysis. Phase changes are followed by X-Ray diffraction of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf3e73b7fdaa456240cfdf6c911fa1e3
https://doi.org/10.4028/www.scientific.net/msf.509.199
https://doi.org/10.4028/www.scientific.net/msf.509.199
Publikováno v:
Journal of the American Ceramic Society. 82:1505-1511
The sliding friction and wear of three different grain-size aluminas were studied from room temperature through 1000°C. The coefficient of friction revealed two distinct regions of decrease with increased temperature, with a transition at ∼700°C.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3144cd56fcb09b9f19f5c63eee02ed6f
https://doi.org/10.1111/j.1151-2916.1999.tb01948.x
https://doi.org/10.1111/j.1151-2916.1999.tb01948.x
Publikováno v:
Journal of the American Ceramic Society. 85:2995-3003
The synthesis of refractory Mg-Al spinel aggregates from bauxites and magnesias was addressed by applying the alumina–magnesia–silica ternary equilibrium phase diagram as the fundamental basis. Four different alumina sources (bauxites) and four d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac6995e44537b0581860b18d172c852d
https://doi.org/10.1111/j.1151-2916.2002.tb00569.x
https://doi.org/10.1111/j.1151-2916.2002.tb00569.x