材料期刊网

硅灰石晶体在三元氧化物熔体中的生长行为研究

刘晶晶 , HEULENS Jeroen , GUO Mu-Xing , MOELANS Nele

无机材料学报 doi:10.15541/jim20150516

利用耦合FACTSage Toxide热力学数据库的定量相场模型,本研究模拟了硅灰石(CaSiO3)在CaO-Al2O3-SiO2体系中的恒温晶体生长过程,并研究了熔体组分和温度对CaSiO3结晶过程的影响.结果表明,硅灰石的形貌主要由其表面能的各向异性所决定,而几乎不受界面动力学的各向异性所影响....

关键词: 晶体生长 , 形貌 , 硅灰石 , 相场

Effect of stress on mu phase formation in single crystal superalloys

Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing

Precipitation behavior of the mu phase under applied stress was systematically investigated in two single crystal superalloys CMSX-4 and R0. The investigation has shown that both the sign and magnitude of the applied stress can affect the precipitation behavior of the ...

关键词: Single crystal superalloy;Topologically close-packed (TCP) phase;Thermal exposure;Rhenium (Re);kinetics;cmsx-4

A mu-Phase behavior in a cast Ni-base superalloy

Journal of Materials Science

The response of mu phase to applied stress and long-term thermal exposure has been investigated in the cast Ni-base superalloy K446. It is found that during stress rupture, the applied stress accelerates the precipitation and growth of mu...

关键词: single-crystal superalloy;thermal exposure;precipitation;stability;rupture;stress

Precipitation behavior of mu phase and creep rupture in single crystal superalloy CMSX-4

Journal of Alloys and Compounds

Precipitation behavior of a topologically close packed (TCP) mu phase as well as its role during the creep deformation in single crystal superalloy CMSX-4 have been investigated. The mu particles nucleated and grew based on low index plan...

关键词: Nickel-base single crystal superalloy;Topologically close packed phase;Thermal exposure;Creep;nickel-base superalloys;ni;deformation;microstructure;mechanisms;diffusion;exposure;fatigue;design;damage

Intergrowth of P phase with mu phase in a Ru-containing single-crystal Ni-based superalloy

Philosophical Magazine Letters

The precipitation of topologically close-packed (TCP) phases in a Ru-containing single-crystal Ni-based superalloy has been investigated. The high-angle annular dark field, selected area electron diffraction, and high-resolution transmission electron microscopy were used to analyze the TCP precipita...

关键词: superalloys;topologically close-packed phases;intergrowth;scanning;transmission electron microscopy;electron-microscopy;packed phases;precipitation;behavior;microstructure;deformation;co7w6

On the role of mu phase during high temperature creep of a second generation directionally solidified superalloy

Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing

The role of mu phase in a second generation directionally solidified Ni-base superalloy during high temperature creep has been characterized in the present work. A large amount of blocky mu phase enveloped by thick gamma'-film is found at...

关键词: mu phase;Directionally solidified Ni-base superalloy;Creep;Carbide;Grain boundaries;precipitation

Lateral photovoltage of B-doped ZnO thin films induced by 10.6 mu m CO(2) laser

Journal of Physics D-Applied Physics

B-doped ZnO thin films were observed to have a lateral laser-induced photovoltaic effect: the saturation value varied very linearly with the 10.6 mu m constant laser spot position between the electrodes on the ZnO surface. It was found that the temperature gradient in ...

关键词: ultraviolet photodetectors

MU5.0再生骨料混凝土空心砌块配合比设计

卓玲 , 陈宝璠

硅酸盐通报

利用废弃混凝土加工成的再生骨料制作再生混凝土空心砌块.在混凝土空心砌块配合比参数优化设计的基础上,以再生骨料混凝土空心砌块抗压强度作为评定指标,采用正交试验方法,研究再生骨料混凝土空心砌块配合比设计.研究结果表明:对于再生骨料混凝土空心砌块,以85％再生粗骨料取代率和100％再生细骨料取代率,选取合...

关键词: 再生骨料混凝土空心砌块 , 再生粗骨料取代率 , 配合比 , 设计

Ab initio study of the electronic structure and the magnetic properties of polymers Co N(CN)(2) (2)(L) L = pyrazine dioxide (pzdo) and 2-methyl pyrazine dioxide (mpdo) with dual mu- and mu 3- N(CN)(2) (-) bridges

Journal of Magnetism and Magnetic Materials

The first principle within the full potential linearized augmented-plane-wave (FP-LAPW) method was applied to study the compound of Co[N(CN)(2)](2)(L) [L = pyrazine dioxide (pzdo) and 2-methyl pyrazine dioxide (mpdo)] with dual mu- and mu...

关键词: ab initio;FP-LAPW;electronic structure;ferromagnetic property;networks;molecule;ni;co

Electronic structure and ferromagnetic properties of organic-inorganic hybrid compound Cu(mu-cbdca)(H(2)O) (n)

Acta Physico-Chimica Sinica

The electronic structure and magnetic properties of the moleculer-based magnet [Cu(mu-cbdca)(H(2)O)](n) (cbdca=cyclobutanedicarboxylate) compound with copper ions as the metallic magnetic center were studied using the FP_LAPW(first-principle full-potential linearized a...

关键词: density functional theory;electronic structure;FP LAPW;molecular magnets;azido;copper(ii);complexes;carboxylate;nickel(ii);bridges;system;ligand