bridgman相关论文
本文描述了一种将区域融熔法与Bridgman方法相结合的单晶生长炉,用它可生长直径为1—1.3cm、长度可达15cm且适用于超声研究用的萘(......
本文介绍了各国在高压变形对难熔金属性能影响方面的研究情况。各国的研究表明,以静液挤压为主的高压变形可以同时改善难熔金属及......
一、概论 金属及合金常以柱晶、单晶和共晶的形态存在而被人们利用,这已是人人皆知的事实。 在人类历史上发现和利用金属单晶由来......
AlH_3是一种含氢量较高的氢化物,因此,引起了人们很大的兴趣。近些年来,国外对AlH_3在常压下的性质进行了不少研究,但在高压下还......
The paper reports that the shear-band spacing can be controlled by the Bridgman solidification technique for a model all......
Electrical and γ-ray energy spectrum response properties of PbI_2 crystal grown by physical vapor tr
Lead iodide single crystal was grown by physical vapor transport method.Two radiation detectors with different configura......
A high-quality Cr 3+:CdWO4 single crystal at a size of approximatelyΦ25×80 mm is grown using the Bridgman method with ......
Numerical simulations of flow in the melt(CdZnTe) with different conditions are conducted using the finite-difference me......
以高纯度的Zn,Ge和P粉末作为原料,采用垂直Bridgman法生长了磷锗锌(ZnGeP2,ZGP)晶体;分别在真空、磷蒸汽和ZGP晶体粉末中对生长的Z......
Fluorescence properties of divalent and trivalent europium ions in CdWO_4 single crystals grown by t
Optical absorption,excitation,and fluorescence were investigated in Eu ion-doped CdWO4 single crystal grown by a modifie......
为掌握地面条件下分离结晶过程中熔体内部的流动规律,采用有限差分法对分离结晶生长CdZnTe晶体熔体内热毛细-浮力对流作了三维数值......
The LiYF4single crystals singly doped Ho3tand co-doped Ho3t,Pr3tions were grown by a modified Bridgman method.The JuddeO......
Lithium lutetium fluoride(LiLuF4) single crystals doped with different Dy3+ ion concentrations were grown by Bridgman me......
当生长掺S的GaSe单晶时,熔体的强烈对流和溶质扩散使得生长出大尺寸的晶体较为困难。本实验采用改进的Bridgman炉,并结合坩埚旋转......
2.0-μm emission and energy transfer of Ho~(3+)/Yb~(3+) co-doped LiYF_4 single crystal excited by 980
Ho3+/Yb3+co-doped Li YF4 single crystals with various Yb3+concentrations and ～ 0.98 mol% Ho3+concentration are grown by t......
介绍了一种砷锗镉(CGA)晶体定向加工的新方法,即根据CGA晶体自身解理面,结合晶体标准极图和X射线衍射图谱,确定出晶体的c轴方向;并......
A Ce~(3+)tion-doped α-Na YF_4 single crystal of high quality is grown successfully by an improved flux Bridgman method ......
以Si(OC_2H_5)_4和Bi(NO_3)_3·5H_2O作为前驱体、柠檬酸作为溶剂,按化学计量比配料,采用溶胶–凝胶法合成并经高温烧结制备了纯相......
用980 nm的近红外激光泵浦Bridgman方法生长的Tb~(3+)/Yb~(3+)共掺的α-NaYF_4单晶,研究了其上转换荧光以及荧光强度与泵浦功率的......
Numerical Simulation of the Multicomponent Mass Transfer during Bridgman Growth of CdZnTe Crystal Us
To reveal the complicated mechanism of the multicomponent mass transfer during the growth of ternary compound semiconduc......
Tm~(3+) doped Na_5Lu_9F_(32) single crystal with high optical quality was grown by an improved Bridgman method. The Judd......
研究了Bridgman定向凝固技术制备的Ni-Si过共晶自生复合材料在不同凝固阶段时的组织特征、相的析出特征以及相组成。探讨了Ni-Si过......
In recent years, motivated by the discovery of deep-UV(wavelengths below 200 nm) nonlinear optical(NLO) phosphates, Ba_3......
热力学公式的学习或推导,往往由于公式的记忆和推演而感到困难或麻烦。为了解决这些问题,有P.W.Bridgman的偏微商公式表,以及其他......
制备了含CuZr纳米相的三元Zr49Cu44Al7块体非晶合金复合材料,该材料具有1.6%的弹性变形和1.78GPa的抗压强度,利用角散射同步辐射研......
1973年在A.F.Ioffe物理—技术学院成立了以I.A.SmirnoV教授为首的稀土研究小组。此小组的主要研究方向为稀土半导体的制备和研究,......
采用了一种使用密封铂坩埚的 Bridgman—Stockbager 法制备 GdF_3、TbF_3、DyF_3、HoF_3和 ErF_3的单晶。又用 Czochralski 工艺也......
Coupled Vibrational Stirring(CVS)is a new technique for non-invasivestirring in cylindrical containers,useful for mixin......
1957年我们研究了1556年陕西关中8级大震前约8小时在震中区两县出现的“地旋”和“地旋运”现象,认为这是一种前震现象。1971年作......
Growth of large single crystal Cu by Bridgman-Stokbarger method was reported.Thecondition of growth are:temperature gra......
本文用垂直的Bridgman—Stockbarger方法,研究了在大温度梯度下,InSb-NiSb共晶单向凝固速度R与其NiSb纤维间距λ的关系,得出结果为......
本文运用经典力学与金属微观力学原理相结合的方法,分析了金属在切削过程中切削塑性变形的特点,证明了切削过程中的Bridgman效应较......
本文研究了Bridgman—Stockbarger法定向凝固的温度场。着重研究了有限长试样从下向上凝固时,固液界面上的温度梯度和生长速度的变......
在 Bridgman 法金属枝晶凝固过程中,引入凝固系统不同共振阶次的纵向稳态正弦振动,研究振动对金属枝晶固-液界面形貌、组织和力学......
本文作者是“区域熔化法”的发明人。作者现身说法,介绍了区域熔化法发明的前后情况。相信本文对读者,尤其是对年轻的科技工作者会......
Chemical etching of a GaSb crystal incorporated with Mn grown by the Bridgman method under micrograv
A GaSb crystal incorporated with Mn has been grown by the Bridgman method on the Polizon facility onboard the FOTON-M3 s......
采用水热重结晶法提纯TlBr,用等离子耦合质谱仪检测痕量杂质。结果表明:水热重结晶法是一种有效的TlBr提纯方法,经一次水热重结晶......
举世闻名的普朗克常数“h”是由叶企孙先生在美国哈佛大学W.Duane教授指导下测出,h=(6.556±0.009)× 10-27尔格·秒.(1986年宣布......
IntroductionAwidevarietyofexperimentalandobservationaldatashowthatshallowewthquakesaretheresultofeitherbrittleshearfailu......
To observe the Te inclusions distribution along the axial direction of CdZnTe ingots,batches of as-grown detector-grade ......
The methods to grow a novel upconversion crystal Ba2ErCI7 are reported in this note. Ba2ErCI7 material was synthesized ......
本文通过对GdCOB晶体进行了光学显微观察 ;结合电子探针微区分析手段 ,讨论了Bridgman法生长所得GdCOB晶体中几类不同性质的包裹物......
Relaxor ferroelectric single crystals PMNT with the size of φ40 mm×80 mm have been grown by a modified Bridgman metho......
Nd-doped PbWO4 crystals are grown by using the modified Bridgman method.The spectroscopic properties of the crystals are......
Laser crystals of LiYF4 (LYF) singly doped with Er3+ in 2.0% and co-doped with Er3+/Yb3+ in about 2.0%/1.0% molar fracti......
Impact of the Travelling Magnetic Field on the Metallic Impurities During the Crystallization of Pho
Silicon is the most extensively studied semiconductor mainly owing to its wide applicability in the photovoltaic solar c......
