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爆温度
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  explosion temperature
    The influences of thermodynamics, ingredient, explosion temperature and other factors on the morphology of products were investigated, then found 70wt%(Ti-C)-Al-Ni and 80wt%(Ti-C)-Al-Ni systems are found to be suitable to fabricate TiC particles reinforced aluminum matrix composites by SHS casting technology. The mechanical property and wear resistance of the composites were also tested.
    探讨Ti-C-Al-Ni体系热力学以及成分、热爆温度等因素对产物组织形貌的影响,给出了较佳的增强体系70wt%(Ti-C)-Al-Ni和80wt%(Ti-C)-Al-Ni,用SHS铸造法制备出TiC颗粒增强铝基复合材料,并进行了力学性能和耐磨性能的测试。
短句来源
    At the thermo explosion temperature , the synthesised products consist of the (Ti,Nb)Ni matrix phase,the (Ti,Nb) 2Ni impurity phase and the eutectic phase β Nb(Ti,Ni) (Ti,Nb)Ni.
    当达到热爆温度时 ,热爆的产物内存在着基体相 (Ti,Nb) Ni,杂相 (Ti,Nb) 2 Ni和由 β- Nb(Ti,Ni)与基体 (Ti,Nb) Ni形成的共晶相 ;
短句来源
    At the temperature higher than the thermo explosion temperature, the eutectic phase nearly disapperaed, while the matrix grains are coarsened.
    在较高的热爆温度下 ,共晶相基本消失 ,基体晶粒粗化
短句来源
  “爆温度”译为未确定词的双语例句
    The disproportionation reaction Sm_2(Fe, Nb)_17H_y+H_2→SmH_y+α-Fe(Nb) begins at 500 ℃ and can continue to 900 ℃. The temperature for HD should be below 500 ℃.
    超过500℃时Sm2(Fe,Nb)17Hy+H2→SmHy+α Fe(Nb)发生歧化,直到900℃仍旧存在,故氢爆温度应低于500℃。
短句来源
    As the initial temperature becomes higher, the two systems react more thoroughly.
    热爆温度越高,两体系反应越彻底;
短句来源
    Regular reaction sintering occured only as the heating temperature is lower than 1 173 K for thermo explosion reaction.
    当温度尚未达到热爆温度时 ,只能发生常规反应烧结 ;
短句来源
    And the relationship between the specimens prepared at different thermal-explosion temperature and its mechanical properties were investigated.
    研究了在不同热爆温度下制备出的样品与其机械性能之间的关系。
短句来源
    The elemental composition and the temperature of thermal explosion are principal factors to influence the reactions and morphology of the products.
    体系成分和热爆温度是影响反应及产物形态的主要因素。
短句来源
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  explosion temperature
A semi-empirical correlation between the hardness and weights of the container bottoms was used to determine the explosion temperature and/or pressure.
      
In addition, a comparison is made between 2D model and measured results for the explosion temperature and tube wall expansion profiles.
      
The explosion temperature and velocity of detonation have been found to be linearly related with the number of nitro groups.
      
Effect of doping ions on the explosion temperature of cadmium azide
      
The explosion temperature is far lower for the igniter VI than for the gaseous ignition systems.
      
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Experiments of the combustion synthesis of the Ti Ni Nb SMA have been done by SHS technique. The influences of powder particle size,purity and heating temperature on the microstructure of thermo explosion synthesised products were investigated. It is found that the powders of higher purity, the fine niobium powders, and the titanium powders with moderate particle size (26μm) are beneficial to the products of high density and less impurity phase, such as (Ti,Nb) 2Ni,etc. Regular reaction sintering occured...

Experiments of the combustion synthesis of the Ti Ni Nb SMA have been done by SHS technique. The influences of powder particle size,purity and heating temperature on the microstructure of thermo explosion synthesised products were investigated. It is found that the powders of higher purity, the fine niobium powders, and the titanium powders with moderate particle size (26μm) are beneficial to the products of high density and less impurity phase, such as (Ti,Nb) 2Ni,etc. Regular reaction sintering occured only as the heating temperature is lower than 1 173 K for thermo explosion reaction. At the thermo explosion temperature , the synthesised products consist of the (Ti,Nb)Ni matrix phase,the (Ti,Nb) 2Ni impurity phase and the eutectic phase β Nb(Ti,Ni) (Ti,Nb)Ni. At the temperature higher than the thermo explosion temperature, the eutectic phase nearly disapperaed, while the matrix grains are coarsened.

采用自蔓延高温合成 (SHS)技术 ,进行 Ti- Ni- Nb形状记忆合金 (SMA)的燃烧合成试验。研究了粉末粒度、纯度和加热温度对热爆燃烧合成的产物组织的影响。结果表明 :纯度高的粉末 ,粒度细的铌粉和粒度适中的钛粉 ,有利于获得密度高和 (Ti,Nb) 2 Ni等杂相少的产物 ;当温度尚未达到热爆温度时 ,只能发生常规反应烧结 ;当达到热爆温度时 ,热爆的产物内存在着基体相 (Ti,Nb) Ni,杂相 (Ti,Nb) 2 Ni和由 β- Nb(Ti,Ni)与基体 (Ti,Nb) Ni形成的共晶相 ;在较高的热爆温度下 ,共晶相基本消失 ,基体晶粒粗化

The porous NiTi shape memory alloys was prepared by thermal-explosion methods. And the relationship between the specimens prepared at different thermal-explosion temperature and its mechanical properties were investigated. The results show that the NiTi alloy prepared by thermal-explosion methods at 1 223 K, has high porosity, high open pore ratio and isotropic pore distribution on the whole, and good superelasticity. The mechanism of rupture is the unite of brittle and ductile through observing the surface...

The porous NiTi shape memory alloys was prepared by thermal-explosion methods. And the relationship between the specimens prepared at different thermal-explosion temperature and its mechanical properties were investigated. The results show that the NiTi alloy prepared by thermal-explosion methods at 1 223 K, has high porosity, high open pore ratio and isotropic pore distribution on the whole, and good superelasticity. The mechanism of rupture is the unite of brittle and ductile through observing the surface of rupture. It is proved that the reform of the pore distribution and morphology can improve the mechanical properties and superelasticity of the porous NiTi shape memory alloy.

利用热爆方法来制备了多孔NiTi形状记忆合金。研究了在不同热爆温度下制备出的样品与其机械性能之间的关系。结果表明:在1223K下热爆反应制备的NiTi合金,具有大的孔隙度,高开孔率和基本各向同性,同时表现出较好的超弹性。对断口分析发现,断裂为脆性断裂和韧性断裂的复合。这表明改善孔洞分布和形态,可以极大地提高多孔NiTi形状记忆合金的机械性能和超弹性。

The hydrogenation-decrepitation (HD) as well as hydrogenation-disproportionation-desorption-recombination (HDDR) processes for Sm_12.7Fe_86.3Nb_1 alloys were investigated at different temperatures by means of XRD,  home-made HDDR equipment and microstructure observations. It shows that the hydrogenation reaction Sm_2(Fe, Nb)_17+H_2→Sm_2(Fe, Nb)_17H_y can begin from 100 ℃, which is accelerated with increasing temperature. The maximal unit cell volume expansion of 3.38% is found at 400 ℃. The disproportionation...

The hydrogenation-decrepitation (HD) as well as hydrogenation-disproportionation-desorption-recombination (HDDR) processes for Sm_12.7Fe_86.3Nb_1 alloys were investigated at different temperatures by means of XRD,  home-made HDDR equipment and microstructure observations. It shows that the hydrogenation reaction Sm_2(Fe, Nb)_17+H_2→Sm_2(Fe, Nb)_17H_y can begin from 100 ℃, which is accelerated with increasing temperature. The maximal unit cell volume expansion of 3.38% is found at 400 ℃. The disproportionation reaction Sm_2(Fe, Nb)_17H_y+H_2→SmH_y+α-Fe(Nb) begins at 500 ℃ and can continue to 900 ℃. The temperature for HD should be below 500 ℃. The desorption-recombination processes maybe carry out according to the reaction SmH_y+α-Fe(Nb)→Sm_2-(Fe, Nb)_17+H_2 above 700 ℃. The hydrogenation-disproportionation processes finish when samples are continuously heated up to 800 ℃ at the heating rate of 400 ℃/h,  and the desorption-recombination processes will reach equilibrium with disproportionation process on the basis of SmH_y+α-Fe(Nb)Sm_2(Fe, Nb)_17+H_2 and only pumping-vacuum can facilitate the reaction to right. Broken samples on halfway HDDR is detrimental to the magnetic properties because of lots of remained α-Fe phase. The content of α-Fe in HDDR-treated samples is higher than that of annealed samples. Lots of cracks in the particles are found among the HDDR-treated samples,  and the size of the recombined Sm_2(Fe, Nb)_17 particles becomes less than 300 nm.

Sm12.7Fe86.3Nb1合金在不同温度下氢爆(HD)及氢化歧化解吸再复合(HDDR)处理时,100℃时可氢化形成Sm2(Fe,Nb)17Hy,随着温度升高氢化速度加快,到400℃时单胞体积最大膨胀了3.38%。超过500℃时Sm2(Fe,Nb)17Hy+H2→SmHy+α Fe(Nb)发生歧化,直到900℃仍旧存在,故氢爆温度应低于500℃。解吸与再复合过程在超过700℃时可能以SmHy+α Fe(Nb)→Sm2(Fe,Nb)17+H2方式进行。在连续的HDDR处理过程中,吸氢歧化在升温(400℃/h)的过程中即已完成,而解吸再复合在保温时与歧化阶段达到平衡,即SmHy+α Fe(Nb) Sm2(Fe,Nb)17+H2,抽真空是使该反应向右进行的主要驱动力。在HDDR过程中破坏试样的原颗粒尺寸会残留较多的软磁α Fe相而恶化氮化后的磁性能,HDDR后残留的α Fe相含量均高于退火态的残留量,2次循环后磁粉的矫顽力较高。HDDR使粉末颗粒表面产生裂纹,再复合后的Sm2(Fe,Nb)17颗粒细小均匀,尺寸分布在几十纳米到300nm之间。

 
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