材料期刊网

Effect of Minor Alloying on Crystallization Behavior and Thermal Properties of Zr_64.5Ni_15.5Al_11.5Cu_8.5 Bulk Amorphous Alloy

Muhammad Iqbal

材料科学技术（英文）

Minor alloying plays an important role in the synthesis and improvement of thermal stability of bulk metallic glasses (BMGs). The present study was conducted to investigate the effect of minor additions of Y, Ti and Nb on crystallization behavior and thermal properties of Zr_64.5Ni_15....

关键词: Activation energy , null , null , null , null , null

Coarsening Kinetics of γ′ Precipitates in Dendritic Regions of a Ni₃Al Base Alloy

H.B. Motejadded

材料科学技术（英文）

Coarsening behavior of γ′ precipitates in the dendritic regions of a Ni₃Al base alloy containing chromium, molybdenum, zirconium and boron was investigated. Annealing treatment was performed up to 50 h at 900, 1000 and 1100 °C. The alloy was produced by vacuum-arc remelting technique...

关键词: Ni₃Al base intermetallic

Study of Ge2Sb2Te5 Film for Nonvolatile Memory Medium

Baowei QIAO , Yunfeng LAI , Jie FENG , Yun LING , Yinyin LIN , TingAo TANG , Bingchu CAI , Bomy CHEN

材料科学技术（英文）

The amorphous Ge2Sb2Te5 film with stoichiometric compositions was deposited by co-sputtering of separate Ge, Sb, and Te targets on SiO2/Si (100) wafer in ultrahigh vacuum magnetron sputtering apparatus. The crystallization behavior of amorphous Ge2Sb2Te5 film was investigated by X-ray diffraction (X...

关键词: Co-sputtering , null , null , null , null

Dissolution Mechanism of a Zr Rich Structure in a Ni₃Al Base Alloy

H.B. Motejadded

材料科学技术（英文）

In the present research, the dissolution mechanism of a Zr rich structure during annealing of a Ni₃Al base alloy containing Cr, Mo, Zr and B, was investigated. The annealing treatments were performed up to 50 h at 900, 1000 and 1100 °C. The alloy used in this investigation was produc...

关键词: Ni₃Al base alloy

Dilatometric Sintering of Ti-2Al and Ti-5Al Elemental Powder

Bharat B.PANIGRAHI , N.Subba REDDY , Karabi DAS

材料科学技术（英文）

The effect of Al addition (2 and 5 at. pct) on sintering kinetics of Ti power was investigated. Al reduces the sintering rates, sinter density, increases activation energy of sintering and accelerates the grain growth. Sintering was controlled by mixed mode, i.e. transient liquid phase sintering, fo...

关键词: Dilatometry , Sintering , Diffusion , Activati

Ionic Conduction in Cubic Zirconias at Low Temperatures

Ying LI , Yunfa CHEN , Jianghong GONG

材料科学技术（英文）

The ac conductivities of Y2O3 or CaO-stabilized cubic zirconias were obtained from complex impedance measurements in the temperature range from 373 to 473 K. By analyzing the temperature-dependence of the resultant dc conductivities, it was shown that the activation energies for conduction are lower...

关键词: Ionic conductivity , null , null , null

AC Impedance Behaviour of Black Diamond Films

Haitao YE , Olivier GAUDIN , Richard B.JACKMAN , null , null , null

材料科学技术（英文）

The first measurement of impedance on free-standing diamond films from 0.1 Hz to 10 MHz up to 300℃ were reported. A wide range of chemical vapour deposition (CVD) materials were investigated, but here we concentrate on `black' diamond grown by microwave plasma enhanced CVD (MWPECVD). The Cole-Cole (...

关键词: Black diamond , diamond , Impedance , spectroscopy , Act

Evolution of Intermetallic Compounds between Sn-0.3Ag-0.7Cu Low-silver Lead-free Solder and Cu Substrate during Thermal Aging

Niwat Mookam

材料科学技术（英文）

The growth, transformation, and lattice structure of intermetallic compounds formed between Sn-0.3Ag-0.7Cu lead-free solder and copper substrate were investigated. Dip soldering was used to initiate the reaction between the solder and substrate. An μ-Cu₆Sn₅ intermetallic phase ...

关键词: Soldering

Dissolution Mechanism of a Zr Rich Structure in a Ni3Al Base Alloy

材料科学技术（英文）

关键词: Ni3Al , 基合金 , 结构 , 溶解机理 , 锆 , 真空电弧重熔 , 界面反应 , 合金凝固

Effect of High Magnetic Field on Layers during Reactive Diffusion Growth Behavior between Solid Cu of Compound and Liquid Al

材料科学技术（英文）

关键词: 生长行为 , 反应扩散 , 强磁场 , 复合层 , 液体 , 固体 , 铜 , 人工智能