学科分类
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8 个结果
  • 简介:X-rayDouble-crystalDiffractometerwithHorizontalSlitsandItsApplicationsXuJingyangandZhuNanchang徐景阳,朱南昌(ShanghaiInstituleofMeta...

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  • 简介:Zr和它的合金作为新结构的材料有优秀机械性质,但是在特定的申请环境,它的腐蚀抵抗仍然需要进一步被探索。在这个工作,两倍发光血浆表面alloying技术在纯Zr表面上被用于copperizing。而且,X光检查衍射(XRD),扫描电子显微镜(SEM)和精力分散光谱(版本)被采用描绘样品。而且,研究也在不同答案在样品的极化曲线上被进行。表面上的Copperizing能在3.5改进纯Zr的腐蚀抵抗?%NaCl并且0.5?摩尔

  • 标签: ZR 两倍发光血浆表面 alloying 技术 Copperizing 极化曲线 腐蚀抵抗
  • 简介:TheMOCVDgrowthofmodifiedAlAs/GaAsdoublebarrierresonanttunnelingdiodes(DBRTD)withanA1GaAschairwasreported.Theresonancestothefirstexcitedstateswereobtained.Thepeak-to-valleycur-rentratio(PVCR)is1.3at77K,roomtemperaturepeakcurrentdensityis8kA/cm~2.Theresonancevoltagesareinagreementwiththetheoreticalapproachbytransfer-matrixmethod.Influenceofinterruptedgrowthtimeatthehetero-interfaceandincorporationoftheAlGaAschairtothedeviceperformanceswerestudiedandthemechanismwasdiscussed.TheattempttoaddanAlGaAschairtotheDBRTDbyMOCVDresultedinimprovementinthePVCRandpeakcurrentdensity.

  • 标签: MOCVD AlAs/GaAs CRYSTAL GROWTH DBRTD
  • 简介:SiliconEpitaxialWaferforXBandDoubleRead-typeDDRIMPATTDiodesbyAtmosphere/LowPressureGrowthTechniqtWangXiangwuandLuChunyi王向武,陆春...

  • 标签: Si EPITAXY Multilayer X BAND DDR