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- Keywords Alumina;Ceramic;Positron annihilation spectrum;Defect;Microstructure; 氧化铝;陶瓷;正电子谱;缺陷;微结构;
- positron annihilation spectrum 正电子湮没频谱
- By the positron annihilation life spectrum (PALS) technique, the free volumes of chitosan and its N alkyl derivatives membranes were measured. 用正电子湮灭寿命谱(PALS)法,研究了N-烷基化壳聚糖膜的自由体积。
- Positron annihilation life time spectrum was a new technique to test and characterize polymer structure by research on free volume. 正电子湮没技术是通过自由体积的研究,对聚合物结构探测和表征的1种新型技术。
- Abstract： The positron annihilation lifeti me spectrum(PALS) method was employed to study the effect of proton radiation on microstructure of the space grade KH-L-Y polysilicone rubber. 摘要： 用正电子淹没寿命谱方法（PALS）研究了质子辐照对空间级硅橡胶KH-L-Y微观结构的影响。
- The vacancy defects of samples were measured by slow positron annihilation. 借助慢正电子湮没技术研究了样品的空位型缺陷。
- positron annihilation life time spectrum 正电子湮没
- Abstract: Magnetized water samples were measured by the positron annihilation lifetime spectrometer. 文摘:用正电子湮没寿命谱仪对经过磁场处理的水样品进行了对照测量。
- The applications of positron annihilation technique in the research of some metal-functional materials are introduced. 本文介绍了正电子湮没方法在若干金属功能材料研究中的一些应用。
- By means of positron annihilation lifetime spectra (PALS), the free volume of polymer could be tested. 通过正电子湮没寿命谱技术(PALS)探测聚合物的自由体积特性,能够了解聚合物的微观性质。
- The positron annihilation technique was applied to study the relation between relative free volume and irradiated graft for PTFE. 用正电子湮没技术研究在聚四氟乙烯辐照接枝过程中的自由体积与正电子湮没寿命谱的关系。
- Radiation damage in W has been studied as a function of irradiation dose by heavy ion simulation and positron annihilation lifetime measurement. 采用重离子辐照模拟方法和正电子湮没寿命测量技术研究了钨辐射损伤随辐照剂量的变化。
- Polyvinyl chloride (PVC) blended material which was filled with ACR toughen particles was studied by positron annihilation technique (PAT). 采用正电子湮没对添加聚丙烯酸酯类(ACR)增韧粒子的聚氯乙烯(PVC)共混材料进行了研究。
- The microscopic mechanism of irradiation damage of Al film reflector is studied by the slow positron annihilation technique and X-ray diffraction. 用慢正电子湮没等分析技术研究了辐照损伤的微观机制。
- The effect of defect and microstructure on soft magnetic properties were studied for FeCuNbSiB alloy by means of positron annihilation technique associated with X ray diffraction. 利用正电子湮没技术结合 X-射线衍射分析了 Fe73.;5Cu1Nb3Si13
- PASCA (positron annihilation spectroscopy for chemical analysis), ESCA, TA and micro-reactor have been used to study the Ni-W/Al2O3 catalysts with various Ni/W atomic ratios (R) . 采用PASCA,ESCA,TA和微型反应色谱等技术研究了Ni-W/Al_2O_3催化体系。
- The principle and techniques of positron annihilation including positron annihilation lifetime spectroscopy and coincidence Doppler broadening are introduced in this article. 摘要介绍了正电子湮没的试验原理，以及正电子寿命谱和符合多普勒展宽等试验技术。
- In this report, the porous silicon formed by anodization of crystal silicon was studied by positron annihilation technique (PAT) and scanning electron microscopy (SEM). 用正电子湮没技术和扫描电子显微镜研究了阳极氧化法制备的多孔硅材料。
- Cd_(1-x)Zn_xTe crystals were prepared by the improved Bridgman method from cadmium-rich materials. The defects in the as-grown and annealed samples are investigated by positron annihilation technology in this paper. 用正电子湮没技术(PAT)研究了原料富Cd改进布里奇曼法生长的碲锌镉单晶样品退火前后的缺陷。
- We have measured the Positron lifetime spectra of La_ 2-x M_xCuO_4(LMCO,MSr,Ba,x0.05,0.10,0.125,0.15,0.2) in the room temperature and studied the relationship between the superconductivity and the mechanism of positron annihilation. 我们测量了La2-xMxCuO4(LMCO;M=Sr;Ba;x=0.;05;0
