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机械合金化过程
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  ma processes
     MA processes of Nd, Fe, Mo blending powders doped with nano sized Fe powder were investigated.
     研究了纳米Fe粉掺杂的Nd ,Fe ,Mo混合粉末的机械合金化过程
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  “机械合金化过程”译为未确定词的双语例句
     Research on the Mechanical Alloying Processes and Magnetic Properties of NdFe_(10.5)Mo_(1.5)N_x
     NdFe_(10.5)Mo_(1.5)N_x的机械合金化过程和磁性能的研究
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     Structure change of Mg_(70)Al_(20)Ca_(10) alloy during mechanical alloying process
     Mg_(70)Al_(20)Ca_(10)合金机械合金化过程中的结构变化
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     COMBUSTION REACTION OF Ni_(20)Ti_(50)C_(30) DURING MECHANICAL ALLOYING
     Ni_(20)Ti_(50)C_(30)机械合金化过程中的爆炸反应
短句来源
     Investigation of Mechanical Alloying Process of Fe_(75)Si_(25) and the Stability of the Product
     Fe_(75)Si_(25)机械合金化过程及其产物稳定性的研究
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     Investigation on the Cu-Zn-Al_2O_3 system shows that Al_2O_3 and α-Cu powder can be formed through ball milling.
     通过对Cu-Zn-Al_2O_3混合粉末机械合金化过程的研究,结果表明:Cu-Zn-Al_2O_3体系通过球磨可以形成α-Cu(Zn)和Al_2O_3粉末;
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  相似匹配句对
     Mechanical Alloying
     机械合金化
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     Modeling of Mechanical Alloying Process
     描述机械合金化过程的理论模型
短句来源
     Investigation of mechanical alloying process of Fe-Si
     Fe-Si机械合金化过程的研究
短句来源
     In this paper,the mechanism, process and application of mechanical alloying are reviewed.
     综述了机械合金化的机制、过程和应用。
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     Solid State Transformation During Mechanical AIIoying
     机械合金化过程中的固态相变
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  ma processes
A numerical comparison is made between Fisher's linear discrimination based on sample autocorrelations and kernel density discrimination for AR and MA processes with and without Gaussian noise.
      
Improved spectral estimates of geophysical data have been obtained by the use of the "maximum entropy method," and the necessary equations were adapted here for the estimation of the weighting parameters of the AR and the MA processes.
      
The SCSs of independent and MA processes appear as linear trends whereas other type of processes have SCSs which are nonlinear for short distances but become linear at large distances.
      
Single-phase amorphous Fe52Nb48 and Fe36Nb64 alloys were synthesized during mechanical alloying (MA) processes.
      
However, in both cases the final product of MA processes were amorphous alloys in paramagnetic state.
      
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Amorphous binary Cu-Ti and Ni-Ti powders could be produced by mechanical alloying of elemen- tal powders in a high-energy ball mill, and the process parameters used were presented. X-ray diffrac- tion (XRD) was used to follow the progress of the mechanical alloying. The crystallization behavior of amorphous powders was measured by XRD at high temperature up to 800℃ and differential ther- mal calorimetry (DTA). It was found that the ball-to-powder weight ratio should be limited and 10: 1 was favourable in this...

Amorphous binary Cu-Ti and Ni-Ti powders could be produced by mechanical alloying of elemen- tal powders in a high-energy ball mill, and the process parameters used were presented. X-ray diffrac- tion (XRD) was used to follow the progress of the mechanical alloying. The crystallization behavior of amorphous powders was measured by XRD at high temperature up to 800℃ and differential ther- mal calorimetry (DTA). It was found that the ball-to-powder weight ratio should be limited and 10: 1 was favourable in this study, and that a small part of layered crystalline phase which might be re- maining during processing was possible to be transformed to amorphous phase by subsequent heat treat- ment below crystallization temperature T_x, and the T_x of Cu_(43)Ti_(57) and Ni_(45)Ti_(55) amorphous powders were about 450℃ and 500℃ respectively. The free energy curves of the metastable and equilibrim phases at 300℃ for binary Cu-Ti system were calculated and a schematic illustration based on the mode of diffusion couples was proposed to explain the amorphization process produced during milling.

用自制的高能球磨机将Cu-Ti和Ni-Ti二元系的纯金属粉末混合物制成了非晶粉末,确定了用机械合金化制取非晶含金粉末的一般工艺条件。用X射线衍射(XRD)方法研究了机械合金化时的非晶化过程。通过高温XRD和热差分析(DTA)方法检测了非晶粉末的晶化行为。实验发现,球料比应加以限制,在我们的实验条件下10:1是较适当的,机械合金化过程可能保存的少量层状结晶相通过随后在低于晶化温度T_X下的加热可能转化成非晶相。Cu_(43)Ti_(57)非晶粉末的T_X约等于450℃,Ni_(45)Ti_(55)约等于500℃。计算了Cu-Ti二元系在300℃时亚稳相和平衡相的自由能曲线,并根据扩散偶的模型讨论和解释了机械合金化的非晶化过程。

The amorphizing transformation of Al--Y--Ni system by mechanical alloying was investigated in both thermodynamic and kinetic aspects. The amorphous powder of Al--rich composition Al_(8o)Y_(15)Ni_5 was formed after 70h milling. The process of the amorphization was monitored by X--ray diffraction. The depen-dence of the amorphization on the milling intensity was also discussed. The result shows that over milling with extra-high intensity has an unfavourable effect on amorphization of the system.

本文用热力学和动力学分析了Al—Y—Ni合金系在机械合金化过程中实现非晶转变的能力。用机械合金化方法成功地获得了Al—Y—Ni非晶合金粉末,其非晶属性由X射线衍射和热分析实验得到证实。并研究了球磨强度对Al—Y—Ni合金系球磨非晶转变的影响,发现强度过高不利于非晶转变。

In this Work,the process of phase transformation of Ti-50at%Al powder mixture during mechanical alloying was investigated by means of X-ray diffractionand TEM analosis Merhod.The results showed that during rriiiling,amorphization happened first,then the formed amorphous was crystallized and the TiAl intermetallic compound was formed.As milling continued,the TiAl intermetallic compound transformed towards to amorp- hous again.During the process of the transformation from mixture to amor- phous,there is diffusion...

In this Work,the process of phase transformation of Ti-50at%Al powder mixture during mechanical alloying was investigated by means of X-ray diffractionand TEM analosis Merhod.The results showed that during rriiiling,amorphization happened first,then the formed amorphous was crystallized and the TiAl intermetallic compound was formed.As milling continued,the TiAl intermetallic compound transformed towards to amorp- hous again.During the process of the transformation from mixture to amor- phous,there is diffusion of Al into the lattice of Ti.According these results, it was suggested that the mechanism of amorphization during mechanical alloying may be a complex process.

本文通过 x 射线和电子显微镜方法研究了 Ti-50at%Al 混合物在机械合金化过程中的固态相变。研究发现:该混合物在研磨的过程中首先发生非晶化,然后,形成的非晶又发生晶化,生成 Ti—Al金属间化合物。在随后的研磨过程中,生成的金属间化合物又发生向非晶的转变。在混合物向非晶的转变过程中,Al 原子向 Ti 的晶格中扩散。因此,机械合金化过程中的非晶化可能是一种复合机制。

 
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