原子扩散
- atomic diffusion
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氧的存在影响了Fe、Ni、Co在粘结相中的原子扩散和烧结动力;
The atomic diffusion of Fe 、 Ni 、 Co and the sintering kinetic force were influenced by oxygen .
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Ag-Cu、Ag-H(62)复合电接点材料界面的原子扩散行为
Interface Atomic Diffusion of the Ag-Cu and Ag-H_ ( 62 ) Electric Contact Materials
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离子辐照对单晶Si中预注入B原子扩散的影响
Effects of Ion Irradiation on the Diffusion of Pre-implanted B Atoms in Crystalline Silicon
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Cu(001)表面吸附原子扩散行为的分子动力学研究
Study on Diffusion Behavior of Adatom on Cu ( 001 ) Surface by Molecular Dynamics
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在退火过程中非磁性的Ag原子扩散到磁性层中,对磁性颗粒起到了很好的隔离作用。
Post annealing may diffuse Ag to the magnetic grain boundaries to segregate the grains .
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而600℃变形机制则为回复蠕变和原子扩散的共同作用机制,a型和a+c型或c型均开动,产生滑移和攀移。
While recovery creep and atom diffusion at 600 ℃, in which both a and c or a + c dislocation slide and climb occurred .
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Cu(111)三维表面岛对表面原子扩散影响的分子动力学研究
Study on the influence of three-dimensional Cu ( 111 ) islands on the diffusion of adatom by molecular dynamics simulation
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部分W原子扩散到ZrC点阵中,形成了(Zr,W)C固溶体;
A ( Zr , W ) C solid solution zone is formed in ZrC .
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其形成机理是碳原子扩散驱动下的W原子和Co原子的迁移。
The mechanism for this process is the migration of W and Co atoms driven by diffusion of carbon atoms .
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实验结果及分析表明,TiN涂层过渡层由混合层及扩散层组成,扩散层包括Ti原子扩散层及N原子扩散层;
The results show that TiN interlayer is composed by mixed layer , Ti atom diffusion layer and N atom dispersion layer .
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氧化将会促使SiGe薄膜中的Ge原子扩散到SOI材料的顶层硅中。
Oxidation driven Ge atoms diffuse from the SiGe film to the top silicon layer .
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循环伏安(CV)和电化学阻抗谱(EIS)分析表明:化学镀Ni处理降低了合金表面的电子转移阻抗和氢原子扩散阻抗,提高了合金表面的电化学反应活性。
CV and EIS analysis showed the electroless Ni decreased electron transfer resistance and hydrogen atom diffusion resistance , but increased electrochemical reactive activity .
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Ti-Fe合金中温转变是以Fe原子扩散控制的切变型相变。
And that mid temperture transformation of Ti Fe alloy is shear transformation controlled by diffusion of Fe atom .
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T1相长大依赖于原子扩散和台阶滑移,是一种长程扩散控制的台阶机制。
The growth of T1 phase is of long term controlled diffusion mechanism depending on the atoms diffusion and ledge slipping .
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Ni3Al(0.98at%B)中硼原子扩散行为的正电子湮没研究
Diffusive behavior of boron in Ni_3Al ( 0.98at % B ) investigated by position annihilation technique
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稀土渗入钢基体和VC渗层,会增大晶体缺陷密度,使碳原子扩散易于进行。
Permeating of rare earths into steel and the VC layer increase the crystal fault density , and , together with its excellent chemical activation , makes carbon atoms diffuse easily .
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对热-剪切循环条件下Sn-3.5Ag-0.5Cu钎料在Cu和Ni界面上原子扩散和化合物的生长行为进行了研究。
In this paper , the atoms diffusion and growth behavior of intermetallic compounds ( IMCs ) on the Sn-Ag-Cu / Ni and Sn-Ag-Cu / Cu interfaces under the thermal-shearing cycling condition were investigated .
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真空扩散焊接(VDW)法制作扩散偶在研究原子扩散中的应用
The Application of Vacuum Diffusion Wellding ( VDW ) Making Diffusion Couple in Research on Atomic Diffusion
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并运用原子扩散无规行走理论计算了在对应不同LarsonMiller指数P值的不同温度和时间下时效时钢中合金元素的扩散距离。
And the diffusion distance of alloy elements at different aging temperature for various time corresponding to different larson-Miller indices P value has been calculated by the random walk theory of atom diffusion .
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在研究表面原子扩散过程时,从Cu吸附原子导致的基体晶格畸变的角度,探讨了吸附原子与基体表面晶格之间、以及吸附原子之间的相互作用及其对原子表面扩散行为的影响。
For the study on diffusing processes of adatoms , interaction between the adatoms and the substrate , interaction between two adatoms and its influence on surface diffusion are presented , in the sight of lattice deformation caused by the adatoms .
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同时,建立了一种新的纳米线生长模型。通过调节In原子扩散影响实现InAs晶体结构可控生长。
A novel nanowire growth model is established , control of the crystal structure of InAs NWs by tuning contributions of In adatom diffusion .
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当贫溶质微区成分作为MS,其温度等于或高于等温淬火(或时效)温度时,贝氏体将以马氏体样切变形核,故贝氏体是在溶质原子扩散控制下切变形核。
It is proposed that when the M S temperature of the solute depleted regions is equal or higher than isothermal ( or aged ) temperature , the bainitic nucleation occurs within the solute depleted regions in the manner of martensitic shear .
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这是由于Pd层极化效应、Co-Nb层维度效应及界面原子扩散效应的影响。
This is contributed to the effects of polarization of Pd layers , dimension of Co-Nb magnetic layers and interdiffusion of atoms in the interfaces .
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用角分布XPS法研究了MOD法制得的YBCO膜在热处理过程中膜的表面元素浓度变化以及膜与村底ZrO2之间的原子扩散和固态化学反应。
Variations of the elemental concentration of the YBCO films prepared by MOD method , diffusion and interactions between the films and ZrO_2 substrate have been studied by means of angular dependent XPS technique .
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液相渗碳处理时钴相梯度结构形成主要是碳原子扩散驱动下的W原子迁移,导致表层碳化钨晶粒长大并相互靠近,从而使液态钴向合金内部迁移。
On the other hand , Co binder gradient formed by liquid state carburizing is due to migration of W atoms driven by diffusion of carbon atoms , leading to coarser and closer WC grains in the surface and inward diffusion of Co atoms .
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并按照原子扩散过程中反应率过程理论,在最近邻相互作用近似下,用动力学方法,计算了Zener弛豫效应。
And according to the rate process theory in diffusion , the relaxation strength is computed by a kinetic method in the nearest-neighbor interaction approximation .
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研究结果表明:1.Cr-Mn-N系高氮钢铸锭晶粒粗大,认为是Mn含量过高,C、N原子扩散速度快导致高温下晶粒长大迅速。
The results of the study indicate that : 1.Cr-Mn-N high nitrogen steel casting ingot has coarse grains , it is due to the high atomic diffusion speed of high content of Mn , C and N in high temperature .
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利用铆钉法制备了Cu-Al扩散偶。借助光学显微镜和彩色金相技术,通过分析烧结过程中销钉及销孔直径尺寸的变化,研究了Cu/Al界面原子扩散的Kirkandall效应。
Cu-Al diffusion couples were prepared with mechanical method The Kirkendall effect of atomic diffusion at Cu / Al interface was investigated by analyzing the changes of the diameters of pin and pinhole respectively during sintering with the help of the OPM and color metallograph .
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烧结温度越高,元素的相对扩散系数越大;相同烧结温度下,PCH样品的相对扩散系数要高于HP样品,即PCH过程中原子扩散要快于HP过程。
At the same sintering temperature , the diffusion coefficient during the PCH process is larger than that of HP . The change of diffusion coefficients influenced by the temperature under PCH is more obvious than that under HP .
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随着变形量的增加,CCT曲线整体向左上方移动,变形促进了碳原子扩散进而加速了铁素体相变,使相变温度升高,相变进程加快。
As the deformation reduction increases , the whole CCT curve moved towards the upper left orientation , the ferrite transformation was accelerated which reason was the deformation accelerate the diffusion of carbon atom , transformation temperature change higher .