Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Altaf H. Carim"'
Autor:
Y. Jia, Stephen K. Streiffer, Darrell G. Schlom, S.J. Fulk, Altaf H. Carim, Dillon D. Fong, Marilyn E. Hawley, D. J. Comstock, J. Lettieri, Stacy Knapp, M. A. Zurbuchen, Xiaoqing Pan, Wei Tian, G. Asayama
Publikováno v:
Journal of Materials Research. 22:1439-1471
Out-of-phase boundaries (OPBs) are translation boundary defects characterized by a misregistry of a fraction of a unit cell dimension in neighboring regions of a crystal. Although rarely observed in the bulk, they are common in epitaxial films of com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fd7885908c701934382a6b7a5f269c7
https://doi.org/10.1557/jmr.2007.0198
https://doi.org/10.1557/jmr.2007.0198
Autor:
Gregory S. Rohrer, Anthony J. Perrotta, Neal R. Dando, Altaf H. Carim, Shih-Ying Tzeng, Cathy Lane Rohrer
Publikováno v:
Journal of the American Ceramic Society. 80:2677-2680
A new two-step transformation sequence has been identified for the conversion of diaspore (α-AlOOH) to corundum (alpha-Al2O3). The powder X-ray diffraction pattern of the intermediate phase, designated alpha'-Al2O3, has been indexed to a monoclinic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b440a478f9f6e2765cddb1a2d91dad72
https://doi.org/10.1111/j.1151-2916.1997.tb03171.x
https://doi.org/10.1111/j.1151-2916.1997.tb03171.x
Autor:
Altaf H. Carim, M. A. Zurbuchen
Publikováno v:
Journal of the American Ceramic Society. 82:705-710
Alumina-silicon carbide whisker (Al2O3-SiCw) composite pieces were brazed under high vacuum with Ag-Cu-based active braze alloys. Joined specimens exhibit mean fracture strengths of 480 MPa (4.5 wt% titanium in braze) and 591 MPa (2.0 wt% titanium in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b82bad7512601a84118835c95d5b0cbd
https://doi.org/10.1111/j.1151-2916.1999.tb01820.x
https://doi.org/10.1111/j.1151-2916.1999.tb01820.x
Publikováno v:
Journal of the American Ceramic Society. 83:2845-2851
Microstructural changes caused by doping α-Al2O3 with small amounts of SiO2 and TiO2 added singly or together were investigated. When they were sintered at 1450°C for 120 min, singly doped samples developed equiaxed microstructures, but codoped mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0629a55c0a744a215e3f9f0a3548648
https://doi.org/10.1111/j.1151-2916.2000.tb01642.x
https://doi.org/10.1111/j.1151-2916.2000.tb01642.x
Autor:
Altaf H. Carim, Donald A. Koss, Tabbetha Dobbins, David R Arenas, Merrilea J. Mayo, Lucille A. Giannuzzi
Publikováno v:
Materials Science and Engineering: A. 334:65-72
Interfacial morphology and reaction products in thermal barrier coating systems were investigated by scanning and transmission electron microscopy (SEM and TEM). The samples consist of yttria-stabilized zirconia (YSZ; 6–8 wt.% yttria) deposited by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94b6c84afe5cfd5bcc3235f6a1e18e65
https://doi.org/10.1016/s0921-5093(01)01795-6
https://doi.org/10.1016/s0921-5093(01)01795-6
Autor:
Anteneh Kebbede, Altaf H. Carim
Publikováno v:
Materials Letters. 41:198-203
The segregation of Si and Ti in 0.6 wt.% TiO2-doped α-Al2O3 containing ∼0.05 wt.% impurity Si was characterized. The material developed an anisotropic microstructure consisting of alumina platelets in an equiaxed matrix. Si collects to form an amo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1c7dfca8151c3a1cfc08726d89ee35a
https://doi.org/10.1016/s0167-577x(99)00130-5
https://doi.org/10.1016/s0167-577x(99)00130-5
Autor:
Anteneh Kebbede, Altaf H. Carim
Publikováno v:
Materials Characterization. 42:229-239
The changes in phase profiles across heterointerfaces and the ability to detect intergranular amorphous phases were investigated using off-axis electron holography in a field-emission transmission electron microscope. The boundaries were viewed in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c67895d826a4259f5e3e78d6040825a1
https://doi.org/10.1016/s1044-5803(99)00017-0
https://doi.org/10.1016/s1044-5803(99)00017-0
Autor:
Altaf H. Carim, Anteneh Kebbede
Publikováno v:
Materials Letters. 36:109-113
The grain morphology in Al 2 O 3 -0.4 wt.% TiO 2 samples derived from the same solution and subjected to the same high temperature heat treatments varies considerably depending on the preparation of the material prior to sintering. In samples calcine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::170fad12dfda80e50ae7fa62d6e1a675
https://doi.org/10.1016/s0167-577x(98)00018-4
https://doi.org/10.1016/s0167-577x(98)00018-4
Publikováno v:
Journal of Materials Research. 13:974-978
Interfacial precipitation in sol-gel derived, titania-doped diphasic mullite gels was investigated using conventional and high resolution transmission electron microscopy. Rutile, anatase, and brookite precipitated on the interface between {110} plan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be83e27857d74e29f0dfb7fcd18c9431
https://doi.org/10.1557/jmr.1998.0136
https://doi.org/10.1557/jmr.1998.0136
Autor:
Altaf H. Carim, C.H. Mohr
Publikováno v:
Materials Letters. 33:195-199
The joining of alumina with the compounds Ti 4 Cu 2 O and Ti 3 Cu 3 O, which are normally found as reaction products in conventional active metal brazing, has been demonstrated. The final phase assemblages correspond to those expected based on the Ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e3af9322c7eb9294b477edf7ee16376
https://doi.org/10.1016/s0167-577x(97)00098-0
https://doi.org/10.1016/s0167-577x(97)00098-0