Results 91 to 100 of about 211,967 (262)

Ab-initio description of heterostructural alloys: Thermodynamic and structural properties of Mg_x Zn_{1-x} O and Cd_x Zn_{1-x} O

, 2010
Pseudobinary heterostructural alloys of ZnO with MgO or CdO are studied by composing the system locally of clusters with varying ratio of cations. We investigate fourfold (wurtzite structure) and sixfold (rocksalt structure) coordination of the atoms. By
Bechstedt, F., Eisenacher, M., Fuchs, F., Furthmüller, J., Rödl, C., Schleife, A.   +5 more
core   +1 more source

Research progress in effects of alloying element Sn on microstructures and properties of Mg alloys

Cailiao gongcheng
Pure Mg has advantages of low density， good shock absorption performance and good biocompatibility， but its strength is low. Alloying is an important method to modify microstructure and properties of pure Mg.
CAI Wenlong, SHI Zhangzhi, ZHAO Anqi, LI Meng, ZHAO Zhijun, WANG Luning   +5 more
doaj   +1 more source

New group of stable icosahedral quasicrystals: structural properties and formation conditions

, 2003
Structural studies on the icosahedral quasicrystals in Zn-Mg-Sc, Cu-Ga-Mg-Sc, and Zn-Mg-Ti alloys as well as their corresponding 1/1 cubic approximants, have revealed that these quasicrystals belong to a new structural group similar to Cd-based ...
Andrusyak, Audier, Guo, Guo, Guo, Guo, Hiraga, Hiroshi Kaneko, Ishii, Ishimasa, Kaneko, Kaneko, Kaneko, Kashimoto, Larson, Lubensky, Markiv, Palenzona, Shechtman, Tsai, Tsai, Tsutomu Ishimasa, Yasushi Kaneko   +22 more
core   +1 more source

Development and characterization of Powder Metallurgy (PM) 2XXX series Al alloy products and Metal Matrix Composite (MMC) 2XXX Al/SiC materials for high temperature aircraft structural applications [PDF]

The results of a series of material studies performed by the Lockheed Aeronautical Systems Company over the time period from 1980 to 1991 are discussed. The technical objective of these evaluations was to develop and characterize advanced aluminum alloy ...
Chellman, D. J., Gurganus, T. B., Walker, J. A.   +2 more
core   +1 more source

Strengthening/weakening effect of graphene orientation angle on mechanical properties of AZ91 magnesium matrix composites

Journal of Magnesium and Alloys
Graphene, as the reinforcing phase of magnesium matrix composites, can effectively improve the material strength, elastic modulus, and other properties. However, the random distribution of graphene in the matrix (i.e., random orientation angle) leads to ...
Dunwei Peng, Zhuo Song, Yunpeng Zhang, Xiaopan Wang, Hua Hou, Yuhong Zhao   +5 more
doaj   +1 more source

Microstructure refinement mechanism upon deeply undercooled solidification of a Ni88Cu6Co6 alloy

Journal of Materials Research and Technology
Applying molten glass purification and cyclic superheat methods, deep undercooling treatment was performed on a Ni88Cu6Co6 alloy system. The alloy was undercooled to an undercooling as high as 300 K and the corresponding microstructure characteristics ...
Xiaolong Xu, Hao Li, Yanxin Yuan, Hua Hou, Yuhong Zhao   +4 more
doaj   +1 more source

High resolution electron microscopy study of a high Cu variant of Weldalite (tm) 049 and a high strength Al-Cu-Ag-Mg-Zr alloy [PDF]

Weldalite (trademark) 049 is an Al-Cu-Li-Ag-Mg alloy that is strengthened in artificially aged tempers primarily by very thin plate-like precipitates lying on the set of (111) matrix planes.
Gayle, Frank W., Herring, R. A., Pickens, Joseph R.   +2 more
core   +1 more source

Influence on hexagonal closed structure and mechanical properties of outer heat treatment cycle and plasma arc transfer Ti54Al23Si8Ni5XNb+Ta coating for Mg alloy by selective laser melting process

High Temperature Materials and Processes
Selective laser melting was used to manufacture the magnesium Mg–Al–Zn–X–Mn (Mg) alloy samples, while outer heat treatment cycles (HTC) and plasma arc transfer (PAT) Ti54Al23Si8Ni5XNb+Ta coating technique were used to improve the outer surface.
Mariappan Lakshmanan, Mariappan Ramar
doaj   +1 more source

Design multifunctional Mg–Zr coatings regulating Mg alloy bioabsorption

Journal of Magnesium and Alloys
Magnesium (Mg) alloys are widely used for temporary bone implants due to their favorable biodegradability, cytocompatibility, hemocompatibility, and close mechanical properties to bone.
Zohra Benzarti, Sandesh Itani, José David Castro, Sandra Carvalho, Ana Sofia Ramos   +4 more
doaj   +1 more source

A phase-field simulation of easily switchable vortex structure for multilevel low-power ferroelectric memory

Journal of Materials Research and Technology
Ferroelectric materials with multi-directional polarization orders can form a variety of special domain structures, which have a wide range of applications.
Zhonglei Liu, Jinming Cao, Zhi Wang, Qiaoling Wang, Hua Hou, Yuhong Zhao   +5 more
doaj   +1 more source