【英文标准名称】:StandardTestMethodforEvaluatingOxidationResistanceofSiliconCarbideRefractoriesatElevatedTemperatures
【原文标准名称】:高温时评定碳化硅耐火材料抗氧化性的标准试验方法
【标准号】:ASTMC863-2000(2010)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:C08.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:氧化;耐火材料;碳化硅
【英文主题词】:oxidation;refractories;siliconcarbide
【摘要】:Theoxidationofsiliconcarbiderefractoriesatelevatedtemperaturesisanimportantconsiderationintheapplicationoftheserefractories.Theproductofoxidationisamorphoussilicaorcristobalite,dependinguponthetemperatureatwhichoxidationtakesplace.Thisoxideformationisassociatedwithexpansionanddegradationofstrength.Thequantityofwatervaporintheatmospheregreatlyaffectstherateofoxidation.Thetest,whichcreatesandmeasurestheexpansion,issuitableforguidanceinproductdevelopmentandrelativecomparisoninapplicationworkwhereoxidationpotentialisofconcern.Thevariabilityofthetestissuchthatitisnotrecommendedforuseasarefereetest.1.1Thistestmethodcoverstheevaluationoftheoxidationresistanceofsiliconcarbiderefractoriesatelevatedtemperaturesinanatmosphereofsteam.Thesteamisusedtoacceleratethetest.Oxidationresistanceistheabilityofthesiliconcarbide(SiC)intherefractorytoresistconversiontosilicondioxide(SiO2)anditsattendantcrystallinegrowth.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:81_080
【页数】:2P.;A4
【正文语种】: