BS EN ISO 18757-2006 精细陶瓷(高级陶瓷、高级工业陶瓷).利用BET法的气体吸收率测定陶瓷粉末的比表面积
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【英文标准名称】:Fineceramics(advancedceramics,advancedtechnicalceramics)-DeterminationofspecificsurfaceareaofceramicpowdersbygasadsorptionusingtheBETmethod
【原文标准名称】:精细陶瓷(高级陶瓷、高级工业陶瓷).利用BET法的气体吸收率测定陶瓷粉末的比表面积
【标准号】:BSENISO18757-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-12-29
【实施或试行日期】:2006-12-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高级工业陶瓷;BET法;陶瓷;陶瓷粉末;定义;测定;尺寸;气体吸收;材料;材料试验;测量;机械试验;氮;粒状材料;粉末;试样制备;表面;试验方法;试验
【英文主题词】:
【摘要】:ISO18757:2003providesguidelinesforthedeterminationofthetotalspecificexternalandinternalsurfaceareaofdisperseorporous(porediametergreaterthan2nm)fineceramicmaterialsbymeasuringtheamountofphysicallyadsorbedgasaccordingtothemethodofBrunauer,EmmettandTeller(BETmethod).ThisInternationalStandardonlyfocusesonspecificdetailsrelevanttofineceramicmaterials.ItshouldfurtherbenotedthattheBETmethodcannotbeappliedtotypeIisotherms(microporousmaterialsorchemisorptionbehaviour)orwhenthesolidadsorbsthemeasuringgas
【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:20P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforGreenStrengthofSpecimensCompactedfromMetalPowders
【原文标准名称】:金属粉末密压试样未烧结强度的标准试验方法
【标准号】:ASTMB312-2009
【标准状态】:现行
【国别】:
【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】:B09.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:恒定负载光束设备;湿强度;粉末冶金;横向强度;未烧结强度;铝合金管;铝管;紧密金属试样;金属粉末;断裂/断裂强度;强度;横向断裂强度
【英文主题词】:constantloadingbeamdevice;greenstrength;PM;powdermetallurgy;transversestrength;unsinteredcompact;Aluminumalloys(tube);Aluminumtube;Compactedmetalspecimens;Greenstrength;Metalpowders;Rupture/rupturestrength;Strength;Transve
【摘要】:5.1Thegreenstrengthvaluedeterminedundertheconditionsspecifiedbythistestmethodisinfluencedbythecharacteristicsofthepowder,howitcompactsunderthespecifiedconditions(i.e.,theparticletoparticlebondingthatexistsfollowingcompacting),andthelubricationsystemused.5.2Knowledgeofthegreenstrengthvalueisusefultotheproduction,characterizationandutilizationofmetalpowdersinthemanufactureofPMstructuralpartsandbearings.Thetestforgreenstrengthofacompactedmetalpowdercanbeusedto:Relatetheresistanceofapressedcompacttobreakageordamageduetohandling.Comparethequalityofametalpowderorpowdermixturefromlottolot.Determinetheeffectoftheadditionofalubricantorotherpowderstoabasepowder.Evaluatepowdermixingorblendingvariables.nbsp;nbsp;nbsp;Factorsthatareknowntoinfluencethegreenstrengthofametalpowderareparticleshape,particlesizedistributionandcompressibilityofthemetalpowder.5.5Theamountandtypeoflubricantorotheradditivesandthemixingprocedureshaveastrongeffectonthegreenstrengthofspecimensproducedfrommetalpowdermixtures.1.1Thisstandardcoversatestmethodthatmaybeusedtomeasurethetransverserupturestrengthofacompactedbutunsintered(green)testspecimenproducedfromlubricatedorunlubricatedmetalpowdersorpowdermixtures.1.2Greenstrengthismeasuredbyaquantitativelaboratoryprocedureinwhichthefracturestrengthiscalculatedfromtheforcerequiredtobreakanunsinteredtestspecimensupportedasasimplebeamwhilesubjectedtoauniformlyincreasingthree-pointtransverseloadundercontrolledconditions.1.3ThistestmethodisacompanionstandardtoTestMethodB528thatcoversthemeasurementofthetransverserupturestrengthofsinteredPMtestspecimens.1.4Withtheexceptionofdensityvalues,forwhichtheg/cm3unitistheindustrystandard,andmassmeasurementsusedtocalculatedensity,thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIequivalentsshowninparentheseshavebeenconvertedinaccordancewithIEEE/ASTMStandardSI10,maybeapproximateandareonlyincludedforinformation.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.^REFERENCE:ASTMStandards:B215PracticesforSamplingMetalPowdersB243TerminologyofPowderMetallurgyB528TestMethodforTransverseRuptureStrengthofMetalPowderSpecimensB925PracticesforProductionandPreparationofPowderMetallurgyx00028;PMx00029;TestSpecimensB962TestMethodsforDensityofCompactedorSinteredPowderMetallurgyx00028;PMx00029;ProductsUsingArchimedesx02019;PrincipleE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod【英文标准名称】:SpecificationforFillerMetalsforBrazingandBrazeWelding
【原文标准名称】:钎焊和硬钎焊填充金属的规范
【标准号】:ANSI/AWSA5.8M/A5.8-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Brazing;Fillermetal;Solderingprocesses;Solderings;Specification;Welding;Weldingengineering
【摘要】:Thisspecificationprescribestherequirementsfortheclassificationofbrazingfillermetalsforbrazingandbrazewelding.Thebrazingfillermetalgroupsdescribedincludealuminum,cobalt,copper,gold,magnesium,nickel,silver,titanium,andbrazingfillermetalsforvacuumservice.Informationisprovidedconcerningtheliquidus,thesolidus,thebrazingtemperaturerange,andgeneralareasofapplicationrecommendedforeachbrazingfillermetal.Aguideisappendedtothespecificationasasourceofinformationconcerningtheclassificationsystememployedandtheintendeduseofthebrazingfillermetalsforbrazingandbrazewelding.
【中国标准分类号】:J33
【国际标准分类号】:25_160_50
【页数】:
【正文语种】:英语
