【英文标准名称】:Essentialratingsandcharacteristicsofsemiconductordevicesandgeneralprinciplesofmeasuringmethods.Part1:Essentialratingsandcharacteristics
【原文标准名称】:半导体器件的基本额定值和特性以及测量方法的一般原则.第1部分:基本额定值和特性
【标准号】:IEC60147-1-1972
【标准状态】:作废
【国别】:国际
【发布日期】:1972
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC47
【标准类型】:()
【标准水平】:()
【中文主题词】:电子设备及元件;电子工程;半导体器件;特性;极限(数学);半导体;测量;电气工程
【英文主题词】:semiconductordevices;properties;limits(mathematics);semiconductors;measurement;electronicequipmentandcomponents;electronicengineering;electricalengineering
【摘要】:
【中国标准分类号】:L40
【国际标准分类号】:2370
【页数】:63P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsofCompressionTestingofMetallicMaterialsatRoomTemperature
【原文标准名称】:室温下金属材料压缩试验的标准试验方法
【标准号】:ASTME9-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Significance8212;Thedataobtainedfromacompressiontestmayincludetheyieldstrength,theyieldpoint,Young''smodulus,thestress-straincurve,andthecompressivestrength(seeTerminologyE6).Inthecaseofamaterialthatdoesnotfailincompressionbyashatteringfracture,compressivestrengthisavaluethatisdependentontotalstrainandspecimengeometry.Use8212;Compressivepropertiesareofinterestintheanalysesofstructuressubjecttocompressiveorbendingloadsorbothandintheanalysesofmetalworkingandfabricationprocessesthatinvolvelargecompressivedeformationsuchasforgingandrolling.Forbrittleornonductilemetalsthatfractureintensionatstressesbelowtheyieldstrength,compressiontestsofferthepossibilityofextendingthestrainrangeofthestress-straindata.Whilethecompressiontestisnotcomplicatedbyneckingasisthetensiontestforcertainmetallicmaterials,bucklingandbarreling(seeSection3)cancomplicateresultsandshouldbeminimized.1.1Thesetestmethodscovertheapparatus,specimens,andprocedureforaxial-loadcompressiontestingofmetallicmaterialsatroomtemperature(Note1).Foradditionalrequirementspertainingtocementedcarbides,seeAnnexA1.Note18212;Forcompressiontestsatelevatedtemperatures,seePracticeE209.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:10P.;A4
【正文语种】:英语