退火处理

• The furnaces can be used for vacuum braze welding of aluminum alloy production , such as aluminum alloy heat exchanger , braze welding of stainless steel , titanium alloy , super - alloy , cemented carbide and nonferrous metals , vacuum temper of high - speed steel , tool and mould steel , bearing steel , stainless steel etc , ageing and annealing of nonferrous metals
  实现的基本工艺高温合金真空钎焊实例：主要用于不锈钢钛合金高温合金硬质合金有色金属的钎焊及高速钢工模具钢轴承钢不锈钢等材料的真空回火，以及有色金属的时效和退火处理。
• In this paper , we implanted mn + ion of different dose into undoped semi - insulating ( 100 ) gaas substrate then performed rapid thermal annealing in different temperature and time . studied the different annealing condition dependence of the samples " structure , electrical and magnetic properties and the relation of the mn + forms and these properties
  本课题采用离子注入的方法将不同剂量的mn ~ +注入到非掺杂半绝缘( 100 ) gaas单晶衬底中，然后进行不同温度和时间的快速热退火处理，研究了不同的退火条件对样品注入层的晶体结构、电特性和磁特性的影响以及mn ~ +在样品中的存在状态与这些性质之间的关系。
• X - ray diffraction ( xrd ) , uv - vis absorption spectroscopy and photoluminescence spectroscopy ( pl ) were employed to study the structural and optical properties of mgxzn1 - xo alloy thin films . the experimental results show that the films were hexagonal wurtzite structure and the band - gap of mgxzn1 - xo alloy thin films gradually increased with increasing mg content . the quality of mgxzn1 - xo alloy thin films can be greatly improved by means of annealing in oxygen ambient
  实验结果表明，利用溶胶-凝胶法制备的mg _ xzn _ ( 1 - x ) o纳米薄膜为六角纤锌矿结构，粒径为3 5nm ，随着mg含量的增加带隙变宽；通过在氧气气氛下退火处理后， mg _ xzn _ ( 1 - x ) o纳米薄膜表现出了较好的结构和发光特性，表明热处理可提高薄膜质量。
• In czochralski silicon crystals ( czsi ) through fast neutron irradiation , formation and conversion of defects were investigated using fourier transform infrared spectroscopy ( ftir ) , positron annihilation technology ( pat ) and scanning electron microscope ( sem ) . the results showed that fast neutron irradiation induced large quantity of metastable defects which can be the capture centers of positron , positron annihilation average lifetime of samples increased with increasing of irradiation dosage . positron annihilation average lifetime of irradiation samples through dosage up to 1 1018 n . cm - 2 tended to constant
  本文对直拉硅样品进行了不同剂量的快中子辐照，在硅中引入大量的亚稳态缺陷，研究这些亚稳态缺陷的形成，并在较宽的温度范围内对辐照样品进行了退火处理，研究退火后亚稳态缺陷的转化及同硅中氧的相互作用，应用傅立叶变换红外光谱技术( ftir ) 、正电子湮没技术( pat )和扫描电镜( sem )进行了测试。
• The alloys , which were cold - worked followed by recrystallization annealing , display cyclic softening in the range of low strain because the cyclic stress - strain curve lies below the monotonic stress - strain curve , and show cyclic hardening in the range of high strain because the cyclic stress - strain curve lies above the monotonic stress - strain curve
  在低应变范围，冷加工后经再结晶退火处理的错合金的循环应力一应变曲线位于单调拉伸曲线的下方，表现为循环软化;在高应变范围则位于单调拉伸曲线的上方，表现为循环硬化。
• The maximal power outputs of 37 . 0 mw / cm2 and 30 . 0 mw / cm2 for the p - and n - type laminated materials respectively at the temperature difference 490 have been experimentally obtained , which are about 2 . 5 and 3 . 0 times those of - fesi2 . chemical analyses show that the interface failure between the bridge alloy and the semiconductor bi2te3 results mainly from the eutectic mixtures with low melting point and brittle compounds formed during welding and long time annealing at 190 . it is found that the electrical properties of a laminated structure are mainly controlled by the wettability of the bridge alloy on the semiconductor surface
  发现： 1 )叠层材料具有明显优于均质材料的热电性能，在490温差下， p -型和n -型叠层材料的最大输出功率分别达到37 . 0和30 . 0 ( mw / cm ~ 2 ) ，是同类型均质- fesi _ 2的2 . 5和3倍； 2 )在焊接过程和190长时间退火处理过程中，焊接过渡层合金和基体半导体(特别是bi _ 2te _ 3 )之间存在明显的元素相互扩散，从而在过渡层中形成一些低熔点共晶体和脆性化合物，这是导致叠层材料破坏的主要原因； 3 )焊接过渡层合金与半导体基体之间的润湿性是影响界面层电性能的主要因素。
• The gradient films and the modification of the microstructure can be realized by the post - heating . then the novel antireflecting energy saving coating glass is achieved . it is also found when the temperature and time of the post - heating increases , the average reflectivity will decrease and the average transmission will increase
  实验结果表明，随着退火处理温度的升高和退火时间的延长，镀膜玻璃的平均反射比呈线性下降的趋势，而其平均透射比则呈现增大的趋势，不过前者的下降趋势更加剧烈和明显。
• The experimental results show that the quality of zno films prepared by electron beam evaporation can be greatly improved by means of two - step annealing of metallic zn films in oxygen ambient , and it is feasible to fabricate high quality mgxzn1 - xo alloy films with mgo buffer layers by using thermal evaporation technique following by two - step annealing process . this method gives a new path to prepare mgxzn1 - xo alloy films
  实验结果表明利用电子束蒸发技术制备的zno薄膜材料，在经过氧气气氛下的二次退火处理后，能够表现出较好的发光和结构特性；以mgo薄膜作为缓冲层制备出了高质量的mgzno合金薄膜材料，这为开展mgzno合金薄膜材料的研究开辟了新的途径。
• With both crt ' s and lcd ' s virtue , fed has a bright future in all kinds of pdf . in this thesis , a new type of field emission cathode was described , that is using simple technique to deposit commercial nano - diamond powder on ti substrates , bonding diamond and ti , and form ohmic - contact by proper high temperature to form cathodes
  本文介绍了一种器件结构和制备工艺简单，易于实现大屏幕显示，且适于批量生产的新型场发射阴极，即在金属钛衬底上均匀涂覆纳米金刚石涂层，然后在高温下退火处理实现两者的牢固键合，并形成欧姆接触。