Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Bing Chu Mei"'
Publikováno v:
Advanced Materials Research. :23-27
In this paper, we evaluated the spectra parameters of Er3+.The absorption spectra of Er3+:CaF2transparent ceramic was measured at room temperature (RT). Based on the Judd–Ofelt theory, the intensity parameters were Ω2= 5.02×10−20cm2, Ω4= 3.40
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::242794e0b346638ec2f61c5e386b9644
https://doi.org/10.4028/www.scientific.net/amr.875-877.23
https://doi.org/10.4028/www.scientific.net/amr.875-877.23
Publikováno v:
Journal of Alloys and Compounds. 566:191-195
Using in situ reaction method, we have studied the sinter process of the layered ternary Ti2SC with Ti, TiS2 and C powders as initial materials. By XRD and thermodynamic calculations we know that Ti2SC is the final result of the reaction between TiS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e29ef3f070992c14744c573488567c8
https://doi.org/10.1016/j.jallcom.2013.03.032
https://doi.org/10.1016/j.jallcom.2013.03.032
Publikováno v:
Key Engineering Materials. :312-316
Ti2SC has been synthesized using Ti/TiS2/2TiC as initial materials. Combining X-ray diffaraction analysis with thermodynamic calculations, a reaction path is proposed for the intermediate phase TiS and Ti2SC formation. TiS was more possible to be obt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79abf148d258528cae8d9143d5ccda7a
https://doi.org/10.4028/www.scientific.net/kem.531-532.312
https://doi.org/10.4028/www.scientific.net/kem.531-532.312
Publikováno v:
Key Engineering Materials. :307-311
Er3+, Na+-co-doped CaF2 transparent ceramics with Er3+ dopant concentration of 5at% and Na+ of 0, 0.5, 1.0 and 1.5at% were fabricated by the vacuum hot pressing method. Absorption spectra, emission spectra and fluorescence lifetimes were measured at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9e6bdb67fe55c7e7831b42d5e14568e
https://doi.org/10.4028/www.scientific.net/kem.531-532.307
https://doi.org/10.4028/www.scientific.net/kem.531-532.307
Publikováno v:
Advanced Materials Research. :808-813
The isothermal oxidation behaviors at 800-1000°C for 20h in air of bulk Ti2AlN and Ti2AlN/TiN were investigated by TG, XRD and SEM coupled with EDS. The oxidation behaviors generally follow the parabolic law. The activation energies of Ti2AlN and Ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e4f0f9e68b66f468cd091ed423c0f0d
https://doi.org/10.4028/www.scientific.net/amr.306-307.808
https://doi.org/10.4028/www.scientific.net/amr.306-307.808
Publikováno v:
Journal of Inorganic Materials. 25:419-423
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46f3fd01d45c3f6b021d6cbcdf15580d
https://doi.org/10.3724/sp.j.1077.2010.00419
https://doi.org/10.3724/sp.j.1077.2010.00419
Electronic Structures and Chemical Bonding of the Layered Tungsten Borides: An Ab Initio Calculation
Publikováno v:
Key Engineering Materials. :178-181
We have investigated the electronic structures and chemical bonding of four tungsten borides, including two WB2 compounds with different crystal structures, α-W2B5 and ε-WB2.5, by ab initio calculations based on density function theory (DFT). The c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14fc10934c0dae3314bb781a79ff1b75
https://doi.org/10.4028/www.scientific.net/kem.434-435.178
https://doi.org/10.4028/www.scientific.net/kem.434-435.178
Publikováno v:
Ceramic Materials and Components for Energy and Environmental Applications
The relations between composition, electronic structure, chemical bond and property of composites of Ti3AlC2/TiB2, Ti2AlC/TiB2 and related single phases of Ti3AlC2, Ti2AlCas well as TiB2 are studied by the first principle methods. There are strong io
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c1967c2dc74d3dc02bd47697e48b6a4
https://doi.org/10.4028/www.scientific.net/amr.66.53
https://doi.org/10.4028/www.scientific.net/amr.66.53
Publikováno v:
Transactions of Nonferrous Metals Society of China. 16:s490-s493
Polycrystalline bulk Ti3AlC2 material with high purity and density was fabricated by hot pressing from the powder mixture with the starting stoichiometric mole ratios of 2.0TiC/ 1.0Ti/ 1.1 Al/ 0.1 Si at 1 300–1 500 °C. X-ray diffraction patterns a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c290ad819a792af2550797fd74d3237
https://doi.org/10.1016/s1003-6326(06)60241-0
https://doi.org/10.1016/s1003-6326(06)60241-0
Publikováno v:
Transactions of Nonferrous Metals Society of China. 16:s869-s873
Not only the isothermal oxidation behaviors at 900–1 300 °C for 20 h in air of bulk Ti3AlC2 with 2.8% TiC which was sintered by hot pressing with the additive of silicon, but also the cyclic oxidation behavior at 1 100–1 300 300 °C for 30 cycle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5609670727d37826636a534dd2bf425f
https://doi.org/10.1016/s1003-6326(06)60318-x
https://doi.org/10.1016/s1003-6326(06)60318-x