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binary alloy 【冶金】二元合金。

The eutectic crystal al3fe often is “ needle “ shape or short line shape but the shape of primary crystal al3fe is relative to the adding amount of fe powder and the temperature of heat preservation stirring . while the adding amount of pure fe powder is few and the temperature of heat preservation stirring is higher than the temperature of liquidus of al - fe binary alloys equilibrium phase diagram , the reaction synthetical primary crystal al3fe exhibits short worm shape 加入量少,保溫攪拌溫度在al - fe二元合金液相線以上,則形成的初晶al _ 3fe呈短蠕蟲狀; fe加入量大,保溫溫度在液相線以上,初晶al _ 3fe以平面方式生長,復合材料中的初晶al _ 3fe呈塊狀或粒狀,尺寸較大( 10 m以下) 。

binary compound

However , the performance of thermoelectric materials can be optimized if various materials with different properties are arranged along the temperature axis to form a graded or laminated thermoelectric material . in the present work some homogeneous materials such as bi2te3 - and fesi2 - based thermoelectric materials as well as pseudo - binary alloys ( pbte ) 1 - x ( snte ) x ( 0 x 1 ) have been prepared , their thermoelectric properties have been measured , and the possibilities for constitution of laminated structures have been discussed . the processes for preparation of laminated thermoelectric materials and the thermal stress buffer layers sandwiched between thermoelectric material segments have been studied 本項工作主要包括: 1 )均質熱電材料bi _ 2te _ 3基、 fesi _ 2基以及膺兩元合金( pbte ) _ ( 1 - x ) ( snte ) _ x ( 0 x 1 )的制備與性能研究,適合于制作梯度功能材料的各種均質熱電材料的篩選; 2 )異種材質及近乎相同材質疊層材料制備工藝的研究以及熱應力緩和層的研究) ; 3 )采用sem 、 edax 、 empa 、 xps等多種手段,對界面處微觀組織結構、擴散與反應的分析; 4 )采用數學建模計算及實驗測量,對兩元和多元疊層熱電材料的結構設計以及性能和熱穩定性的研究。

The eutectic crystal al3fe often is “ needle “ shape or short line shape but the shape of primary crystal al3fe is relative to the adding amount of fe powder and the temperature of heat preservation stirring . while the adding amount of pure fe powder is few and the temperature of heat preservation stirring is higher than the temperature of liquidus of al - fe binary alloys equilibrium phase diagram , the reaction synthetical primary crystal al3fe exhibits short worm shape 加入量少,保溫攪拌溫度在al - fe二元合金液相線以上,則形成的初晶al _ 3fe呈短蠕蟲狀; fe加入量大,保溫溫度在液相線以上,初晶al _ 3fe以平面方式生長,復合材料中的初晶al _ 3fe呈塊狀或粒狀,尺寸較大( 10 m以下) 。

This effect was gradually decreased with the increase of snte content in the pseudo - binary alloys as well as the increase of temperature , which is considered to be caused by the change of scattering mechanism , the saturation of carrier concentration as well as the ag atoms occupying the 隨著膺ti合金rfsnte含量和測試溫度的上升, ag摻雜的作用逐漸降低,胸二兒合金的性能逐漸惡化。其原因被認為是由于散射機制的改變、載流子濃度趨于飽和以及ag作為間隙原一了提供額外施主。

By comparing the activation area of binary alloy with that of ternary alloy catalyst , the introduction of multi - metal alloy catalyst is found to be able to increase the number of activation site 比較二元合金催化劑同三元合金催化劑的活性面積,發現采用多金屬催化劑還能提高活性點的數目。

There are many reports on the preparation and the formation mechanism of binary alloy using ma , but there arc few reports on the study of ternary alloy 用ma法制備二元非晶合金及其形成機理的研究已較多,卻很少有關三元非晶合金方面的研究。

Numerical simulation on solute segregation during solidification in fiber reinforced aluminum - copper binary alloy composites 短纖維增強鋁銅二元合金復合材料凝固偏析的數值模擬

Numerical simulation of non - isothermal dendritic growth of binary alloy using phase - field method 二元合金非等溫凝固枝晶生長的相場法模擬

Numerical simulation of solute segregation patterns for a binary alloy using phase - field approach 二元合金微觀偏析的相場法數值模擬

Numerical simulation of dendrite growth for binary alloy during non - isothermal solidification 二元合金非等溫凝固枝晶生長的數值模擬

Binary alloy steel 二元合金鋼

The calculations for enthalpies of formation for noble metal - stannum binary alloys 貴金屬與錫二元合金的熱力學性質的計算

Binary alloy photoconductor 兩元合金光電導體

Phase - field simulation of non - isothermal solidification of binary alloy 二元合金非等溫凝固過程的相場法模擬

Review and prospect of solderable tin - based binary alloy plating 可焊性錫基二元合金鍍層研究的現狀與展望