机械诱发扩散反应,mechanically induced diffusion-controlled reaction(MRD)
1)mechanically induced diffusion-controlled reaction(MRD)机械诱发扩散反应
1.The results indicate that the diameter influenced both reaction mode and speed,namely as the ball diameter is small,Ti + C → TiC reaction develops gradually through mechanically induced diffusion-controlled reaction(MRD);as the ball diameter is large,the reaction progresses rapid in SHS mode.结果表明:在机械合金化制备TiC的过程中,磨球直径对于反应发生的速率和反应机理有着明显的影响,即当磨球直径较小时,Ti+C→TiC反应是以机械诱发扩散反应(MRD)的形式逐步进行的;当磨球直径较大时,反应是以自蔓燃反应(SHS)的形式快速进行的。
2)mechanically induced self-propagation reaction(MSR)机械诱发自蔓延反应
1.The powders and bulks product composed of TiC,Ti3SiC2,TiSi2 and Ti5Si3 were synthesized by mechanically induced self-propagation reaction(MSR) during mechanical alloying of 3Ti/Si/2C powders.本研究提出了一个机械诱发自蔓延反应合成Ti3SiC2的反应机制,即Ti3SiC2是从固相TiC与Ti-Si液相中形核并长大。
英文短句/例句
1.Study of Reaction Mechanism for Synthesis of Ti_3SiC_2 by Mechanically Induced Self-Propagation Reaction机械诱发自蔓延反应合成Ti_3SiC_2的机理研究
2.Reaction mechanism for the synthesis of Ti_3AlC_2 by mechanically induced self-propagation reaction机械诱发自蔓延反应合成Ti_3AlC_2的机理研究
3.Laser-induced Self-propagating Reaction Synthesis of Ti-Fe System Alloys;激光诱导自蔓延反应合成Ti-Fe系合金
4.Laser-induced Self-propagating Reaction Synthesis of Quasicrystal Materials and Amorphous Materials;激光诱导自蔓延反应合成准晶和非晶材料
5.The Research of Mg-TiO_2 by SHS;Mg-TiO_2自蔓延高温合成反应研究
6.Research and Development of SHS Reactive Spray Technology自蔓延反应喷涂技术最新研究及进展
7.A Study on Mechanism of Self-propagating High-temperature Synthesis of Ti_3SiC_2 Machinable Ceramic;层状可加工陶瓷Ti_3SiC_2自蔓延高温合成反应机理的研究
8.Study on Mechanism of Self Propagating Reaction Assisted Diffusion Bonding of TiAl to TiC Cermet;TiAl与TiC金属陶瓷自蔓延反应辅助扩散连接机理研究
9.RESEARCH PROGRESS OF THE REACTION MECHANISM OF SOLID-STATE COMBUSTION INDUCED BY MECHANICAL ALLOYING;机械合金化诱发固态燃烧反应机理研究进展
10.The Reaction Path and Products of Self-propagating High-temperature Synthesis in Cr-Ti-B_4C SystemCr-Ti-B_4C体系自蔓延高温合成反应路径及产物
11.Thermodynamics Analysis of Mg-TiO_2/Al-TiO_2 System by SHSMg-TiO_2/Al-TiO_2体系自蔓延高温合成反应热力学分析
12.Effect of Kinetics Factors on Products of Self-propagating High-temperature Synthesis Reaction of Cr-Ti-C System;动力学因素对Cr-Ti-C体系自蔓延高温合成反应产物的影响
13.Calculation and Verification of Adiabatic Temperature of Self-propagatingreaction System Based on the Database of Materials" Thermodynamics基于物质热力学数据库自蔓延反应体系绝热温度的计算及验证
14.Study on Wear-resistant Property of TiCNi/Fe Ceramic Coating Produced by SHS Reactive Hot PressingTiCNi/Fe自蔓延反应热压复合工艺及其摩擦磨损性能研究
15.Laser Cladding and Laser-induced Self-propagating Synthesis of Zr-based Amorphous Alloys;Zr基非晶合金激光熔覆与诱导自蔓延合成
16.A Study on Mechanism of Self-Propagating High-Temperature Synthesis by Combustion front Quenching Technique;用燃烧波淬熄法对自蔓延高温合成机理的研究
17.A Study on Simulation of Forest Fire Spread Based on a 3D-CA Modal;基于3D元胞自动机模型的林火蔓延模拟研究
18.Research on the Self-propagating High-temperature Synthesis Mechanism of Tin Oxide Nanowires氧化锡纳米线自蔓延高温合成及其机理的研究
相关短句/例句
mechanically induced self-propagation reaction(MSR)机械诱发自蔓延反应
1.The powders and bulks product composed of TiC,Ti3SiC2,TiSi2 and Ti5Si3 were synthesized by mechanically induced self-propagation reaction(MSR) during mechanical alloying of 3Ti/Si/2C powders.本研究提出了一个机械诱发自蔓延反应合成Ti3SiC2的反应机制,即Ti3SiC2是从固相TiC与Ti-Si液相中形核并长大。
3)mechanic diffusion机械扩散
4)Reaction-diffusion process反应扩散机制
5)Evoked Response诱发反应
1.A comparison between auditory steady-state evoked response and pure tone threshold in adults with sensorineural hearing loss;成人感音神经性聋听觉稳态诱发反应阈值与纯音听阈值比较
2.Multiple auditory steady-state evoked responses test of young adults with normal hearing;正常青年人多频稳态听觉诱发反应测试
6)evoked potential诱发反应
1.Objective To investigate the mechanism of the electroacupuncture which is used to treat the cervicogenic vertigo caused by vertebro-arteiial cervical spondylosis by improving the vestibular dysfunction with the methods of the nystagmus elicited; audiometry and direct vestibularevoked potentials (VsEPs).目的 采用眼震诱发反应、测听术和直接前庭诱发电位(VsEPs)技术，探讨电针改善前庭功能障碍，治疗椎动脉型颈椎病所致颈性眩晕的机理。
延伸阅读
通用机械：油扩散泵利用低压﹑高速和定向流动的油蒸气射流抽气的真空泵。这种泵的极限真空为10-4～10-5帕﹐工作压力范围为10-1～10-4帕﹐抽速范围为几十至十几万升/秒(1升＝10-3米3)。油扩散泵是获得高真空的主要设备﹐广泛用于真空冶炼﹑真空镀膜﹑空间仿真试验和对油污染不敏感的一些真空系统中。 简史 19﹐德国物理学家W.盖得发表了他研究的扩散泵报告。19﹐美国人I.朗缪尔制成泵壁带有冷却系统的所谓冷凝泵。这些泵以汞蒸气为工作介质可获得10-5帕真空。1928年﹐英国人C.D.伯尔奇发现高沸点的石油衍生物﹐1936年﹐C.D.希克曼等人制成人工合成油。这两种油在室温下的饱和蒸气压都非常低﹐从而取代了汞作为扩散泵的工作液。从此油扩散泵在高真空领域的工业生产和科学试验中就日渐普遍使用﹐并奠定了高真空技术的基础。60年代开始﹐油扩散泵又有了新的发展。主要的改进是﹕ 泵的材料采用放气量甚小的不锈钢。 采用饱和蒸气压很低﹑热稳定性好的油如聚苯醚和硅油作为泵的工作液。 改革结构﹐新型油扩散泵在泵口法兰不变和不过分增大泵的外形尺寸条件下﹐在法兰下部突出地扩大泵腔的断面﹐其抽气速率可增大20～40％。如在此装设一个大直径扩散喷嘴和液氮冷却的大直径挡油帽等。泵可有通常泵(指没有扩大泵腔断面的泵)的抽气速率﹐并比较彻底地克服了泵的返油而获得低于10-8帕清洁超高空。因此﹐油扩散泵在清洁超高真空的工业生产和科学试验中又取得重要的地位。 结构和工作原理 油扩散泵主要由泵体﹑扩散喷嘴﹑蒸气导管﹑油锅﹑加热器﹑扩散器﹑冷却系统和喷射喷嘴等部分组成(见图 油扩散泵的结构原理图 )。当油扩散泵用前级泵预抽到低于1帕真空时﹐油锅可开始加热。沸腾时喷嘴喷出高速的蒸气流﹐热运动的气体分子扩散到蒸气流中﹐与定向运动的油蒸气分子碰撞。气体分子因此而获得动量﹐产生和油蒸气分子运动方向相同的定向流动。到前级﹐油蒸气被冷凝﹐释出气体分子﹐即被前级泵抽走而达到抽气目的。 泵油的蒸气压直接影响泵的真空性能。但油扩散泵所使用的任何泵油﹐都是蒸气压不同的多组分的混合物。因此﹐要提高油扩散泵的抽气和真空性能﹐泵在工作中自身还要对泵油进行分馏和净化。分馏目的是使高蒸气压组分的油不进入高真空工作喷嘴(高真空端的喷嘴)﹔净化目的是使高蒸气压组分的油在工作过程中不断为前级泵所抽除﹐使油逐渐趋于纯净。
