Thermodynamic Modeling of Oxide Phases in the Mn-O SystemMetallurgical and Materials Transactions E - Tập 3 - Trang 156-170 - 2016
Youn-Bae Kang, In-Ho Jung
A critical evaluation and thermodynamic modeling for thermodynamic properties of
all oxide phases and phase diagrams in the Mn-O system are presented. Optimized
Gibbs energy parameters for the thermodynamic models of the oxide phases were
obtained which reproduce all available and reliable experimental data within
error limits from 298 K (25 °C) to above the liquidus temperature at
compositions co... hiện toàn bộ
Liquidus Projections of Bi-Se-Ga and Bi-Se-Te Ternary SystemsMetallurgical and Materials Transactions E - Tập 3 - Trang 281-290 - 2016
Po-han Lin, Sinn-wen Chen, Jenn-dong Hwang, Hsu-shen Chu
This study determines the liquidus projections of both Bi-Se-Ga and Bi-Se-Te
ternary systems which are constituent ternary systems of promising Bi-Se-Te-Ga
thermoelectric materials. Ternary Bi-Se-Ga and Bi-Se-Te alloys are prepared.
Their primary solidification phases are experimentally determined, and thermal
analysis experiments are carried out. The liquidus projections are determined
based on t... hiện toàn bộ
Hàn Trộn Ma Sát của Thép ODS và RAFM Dịch bởi AI Metallurgical and Materials Transactions E - Tập 2 - Trang 164-172 - 2015
Zhenzhen Yu, Zhili Feng, David Hoelzer, Lizhen Tan, Mikhail A. Sokolov
Các vật liệu cấu trúc tiên tiến như thép gia cường bằng phân tán oxit và thép
ferritic/martensitic giảm hoạt hóa đang được mong chờ sử dụng trong các lò phản
ứng nhiệt hạch làm vật liệu ứng cử viên chính cho cấu trúc tường đầu tiên và lớp
chụp, nhờ vào khả năng chống bức xạ và co rút nhiệt độ cao tuyệt vời của chúng.
Tuy nhiên, tính hàn kém của chúng đã trở thành thách thức kỹ thuật lớn nhất hạn
c... hiện toàn bộ
#Thép gia cường bằng phân tán oxit #Thép ferritic/martensitic giảm hoạt hóa #Hàn ma sát trạng thái rắn #Kích thước hạt #Vi cấu trúc.
Proton-Conducting Nanocrystalline Ceramics for High-Temperature Hydrogen SensingMetallurgical and Materials Transactions E - Tập 1 - Trang 48-57 - 2014
Xiling Tang, Zhi Xu, Adam Trontz, Wenheng Jing, Junhang Dong
The proton-conductive doped ceramic materials, including SrCe0.95Tb0.05O3−δ
(SCTb), SrCe0.8Zr0.1Y0.1O3−δ (SCZY), and SrZr0.95Y0.05O3−δ (SZY), are
synthesized in the forms of nanoparticles and nanocrystalline thin films on
sapphire wafers and long-period grating (LPG) fibers. The H2 chemisorption and
electrical conductivity of the nanocrystalline SCTb, SCZY, and SZY materials are
measured at high t... hiện toàn bộ
Current Status on Resource and Recycling Technology for Rare EarthsMetallurgical and Materials Transactions E - Tập 1 - Trang 160-173 - 2014
Osamu Takeda, Toru H. Okabe
The development of recycling technologies for rare earths is essential for
resource security and supply stability because high-quality rare earth mines are
concentrated in China and the demand for rare earth metals such as neodymium and
dysprosium, used as raw materials in permanent magnets (neodymium magnet), is
expected to increase rapidly in the near future. It is also important to
establish a ... hiện toàn bộ
Damage Mechanisms of a TiB2-Reinforced Steel Matrix Composite for Lightweight Automotive ApplicationMetallurgical and Materials Transactions E - Tập 3 - Trang 203-208 - 2016
Y. Z. Li, Z. C. Luo, H. L. Yi, M. X. Huang
The microscopic strain-and-stress fields related to primary and eutectic
particles in a lightweight steel matrix composite (SMC) produced by in situ
precipitation of TiB2 particles during solidification were investigated by means
of microscale digital image correlation and finite element method. The damage
process in this SMC is a sequential process of primary particles cracking, the
fracture of t... hiện toàn bộ
Evaluation of Drying Rates of Lignite Particles in Superheated Steam Using Single-Particle ModelMetallurgical and Materials Transactions E - Tập 3 - Trang 308-316 - 2016
Tsuyoshi Kiriyama, Hideaki Sasaki, Akira Hashimoto, Shozo Kaneko, Masafumi Maeda
Drying rates of lignite particle groups in superheated steam are evaluated using
a single-particle model developed for Australian lignite. Size distributions of
the particles are assumed to obey the Rosin–Rammler equation with the maximum
particle diameters defined as 100, 50, and 6 mm. The results show the drying
rate of a lignite group depends strongly on the maximum particle size, and
removal o... hiện toàn bộ
Iron-Catalyzed Boron Removal from Molten Silicon in AmmoniaMetallurgical and Materials Transactions E - Tập 3 - Trang 228-233 - 2016
Zhiyuan Chen, Kazuki Morita
A high-temperature process of refining metallurgical-grade silicon to
solar-grade silicon was developed. In this gas purging treatment, boron impurity
in silicon reacts with ammonia and the products are removed as volatiles at high
temperature. 1 mass pct metallic iron was added to molten silicon as a catalyst,
improving the boron removal ratio from 14 to 80 pct at 1723 K (1450 °C). At
1823 K (155... hiện toàn bộ