reliability_study_of_low_cost_alternative_ag_alloy_wire_spil
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以下附件為ASTM B33 美國行業標准 對各種規格的導體做出相應要求!如延伸! 敬請關注: 电线电缆专业网 裡面又你需要的電纜專業資料. shallbedeterminedbythewrappingandimmersiontestinaccordancewith6.5.5.6Joints—Necessaryjointsinthecompletedwireandinthewireandrodspriortofinaldrawingshallbemadeinaccordancewiththebestcommercialpractice.5.7Finish—Thecoatingshallconsistofasmoothcontinu-ouslayer,firmlyadherenttothesurfaceofthecopper.Thewireshallbefreeofallimperfectionsnotconsistentwiththebestcommercialpractice.6.TestMethods6.1TensileStrengthandElongation(ExplanatoryNote5)—Notestfortensilestrengthshallberequired.Theelonga-tionofwirewhosenominaldiameterislargerthan0.0808in.(2.052mm)indiametershallbedeterminedasthepermanentincreaseinlength,expressedinpercentoftheoriginallength,duetothebreakingofthewireintension,measuredbetweengagemarksplacedoriginally10in.(254mm)apartuponthetestspecimen.Theelongationofwirewhosenominaldiameteris0.0808in.andundermaybedeterminedasdescribedaboveorbymeasurementsmadebetweenthejawsofthetestingmachine.Whenthelattermethodisused,thezerolengthshallbethedistancebetweenthejawsatthestartofthetensiontestandbeasnear10in.aspracticableandthefinallengthshallbethedistancebetweenthejawsatthetimeofrupture.Thefractureshallbebetweengagemarksinthecaseofspecimenssomarkedorbetweenthejawsofthetestingmachineandnotcloserthan1in.(25.4mm)toeithergagemarkoreitherjaw.6.2Resistivity(ExpanatoryNote4)—Theelectricalresistiv-ityofthematerialshallbedeterminedinaccordancewithTestMethodB193.Thepurchasermayacceptcertificationthatthewirewasdrawnfromrodstockmeetingtheinternationalstandardforannealedcopperinsteadofresistivitytestsonthefinishedwire.6.3DimensionalMeasurements—Dimensionalmeasure-mentsshallbemadewithamicrometrecaliperequippedwithaverniergraduatedin0.0001in.(0.0025mm).Measurementsshallbemadeonatleastthreeplacesoneachunitselectedforthistest.Ifaccessible,onemeasurementshallbetakenoneachendandonenearthemiddle.Theaverageofthethreemeasurementsshalldeterminecompliancewiththerequire-ments.6.4ContinuityofCoating:6.4.1Specimens:6.4.1.1LengthofSpecimens—Testspecimensshallhavealengthofabout6in.(152mm).Theyshallbetaggedormarkedtocorrespondwiththecoil,spool,orreelfromwhichtheywerecut.6.4.1.2TreatmentofSpecimens—Thespecimensshallbethoroughlycleanedbyimmersioninasuitableorganicsolventsuchasbenzene,ether,ortrichloroethyleneforatleast3min;thenremovedandwipeddrywithaclean,softcloth(Caution-seeExplanatoryNote5).Thespecimensthuscleanedshallbekeptwrappedinaclean,dryclothuntiltested.ThatpartoftheTABLE1TensileRequirementsDiameterAreaat20°Cin.mmcmilin.2mm2Elongationin10in.(250mm),%max0.460011.6840211600.000.166190107.2193300.409610.4038167772.160.13176885.0114300.36489.2659133079.040.10452067.4321300.32498.2525105560.010.08290753.4880300.28937.348283694.490.06573342.4086250.25766.543066357.760.05211733.6240250.22945.826852624.360.04133126.6652250.20435.189241738.490.03278121.1492250.18194.620333087.610.02598716.7657250.16204.114826244.000.02061213.2980250.14433.665220822.490.01635410.5509250.12853.263916512.250.0129698.3669250.11442.905813087.360.010278796.6315250.10192.588310383.610.008155275.2615200.09072.30388226.490.006461074.1684200.08082.05236528.640.005127583.3081200.07201.82885184.000.004071502.6268200.06411.62814108.810.003227052.0820200.05711.45033260.410.002560721.6521200.05081.29032580.640.002026831.3076200.04531.15062052.090.001611711.0398200.04031.02361624.090.001275560.8229200.03590.91191288.810.001012230.6530200.03200.81281024.000.000804250.5189200.02850.7239812.250.000637940.4116200.02530.6426640.090.000502730.3243200.02260.5740510.760.000401150.2588200.02010.5105404.010.000317310.2047150.01790.4547320.410.000251650.1624150.01590.4039252.810.000198560.1281150.01420.3607201.640.000158370.1022150.01260.3200158.760.000124690.0804150.01130.2870127.690.000100290.0647150.01000.2540100.000.000078540.0507100.00890.226179.210.000062210.0401100.00800.203264.000.000050270.0324100.00710.180350.410.000039590.0255100.00630.160039.690.000031170.0201100.00560.142231.360.000024630.0159100.00500.127025.000.000019630.0127100.00450.114320.250.000015900.0103100.00400.101616.000.000012570.0081100.00350.088912.250.000009620.0062100.00310.07879.610.000007550.004910TABLE2ElectricalResistivityRequirementsNominalDiameterResistivityat20°Cin.mmV·lb/mile2V·g/m20.460to0.290,incl11.7to7.4,incl896.150.15695Under0.290to0.103,inclUnder7.4to2.6,incl900.770.15776Under0.103to0.0201,inclUnder2.6to0.51,incl910.150.15940Under0.0201to0.0111inclUnder0.51to0.28,incl929.520.16279Under0.0111to0.0030,inclUnder0.28to0.076,incl939.510.16454TABLE3PermissibleVariationsinDiamterNominalDiameterofWirePermissibleVariationsinDiameterin.mmin.mmplusminusplusminusUnder0.0100Under0.250.00030.000100.00760.00250.0100andover0.25andover3%1%3%1
第42卷第4期2023年8月沈 阳 理 工 大 学 学 报JournalofShenyangLigongUniversityVol42No4Aug2023
收稿日期:2022-12-27基金项目:国家自然科学基金项目(51871221)作者简介:祝祥(1997—)ꎬ男ꎬ硕士研究生ꎮ通信作者:杜晓明(1976—)ꎬ男ꎬ教授ꎬ博士ꎬ研究方向为先进铝合金的制备与加工成型ꎮ文章编号:1003-1251(2023)04-0069-06DD419镍基单晶高温合金980℃下低周疲劳行为研究祝 祥1ꎬ杜晓明1ꎬ刘纪德2(1.沈阳理工大学材料科学与工程学院ꎬ沈阳110159ꎻ2.中国科学院金属研究所ꎬ沈阳110016)摘 要:对DD419镍基单晶高温合金在980℃下的低周疲劳行为进行试验研究ꎬ并对疲劳数据进行分析ꎬ获得该温度下合金疲劳参数ꎮ结果表明:该合金低周疲劳变形过程中ꎬ弹性变形起主要作用ꎬ塑性变形较低ꎻ循环应力响应行为以先循环软化、再趋于稳定为主要方式ꎬ并且随着应力幅的增加ꎬ循环寿命不断降低ꎮ低应变幅下ꎬ合金的疲劳断裂表现为脆性断裂的特征ꎬ并呈现出明显的多源疲劳特征ꎬ微观断口形貌的主要特征是出现准解理台阶ꎬ可判断准解理断裂是主要的断裂机制ꎮ关 键 词:镍基单晶高温合金ꎻ低周疲劳ꎻ疲劳寿命ꎻ断裂机制中图分类号:TU973.2+54文献标志码:ADOI:10.3969/j.issn.1003-1251.2023.04.011StudyonLowCycleFatigueBehaviorofDD419NickelBaseSingleCrystalSuperalloyat980℃ZHUXiang1ꎬDUXiaoming1ꎬLIUJide2(1.ShenyangLigongUniversityꎬShenyang110159ꎬChinaꎻ2.InstituteofMetalResearchꎬChineseAcademyofSciencesꎬShenyang110016ꎬChina)Abstract:Thelow ̄cyclefatiguebehaviorofDD419Nickel ̄basedsinglecrystalsuperalloyat980℃isexperimentallystudiedandthefatiguedataisanalyzedtoobtainthefatiguepa ̄rameters.Theresultsshowthatelasticdeformationplaysamajorroleintheprocessoflowcyclefatiguedeformationꎬwhileplasticdeformationisrelativelylow.Thecyclicstressre ̄sponsebehavioriscyclicsofteningfirstandthenstabilizingꎬandthecycliclifedecreaseswiththeincreaseofstressamplitude.Atlowstrainamplitudeꎬthefatiguefractureoftheal ̄loyshowsthecharacteristicsofbrittlefractureꎬandpresentsobviousmulti ̄sourcefatiguecharacteristics.Themainfeatureofthemicroscopicfracturemorphologyisthepresenceofquasi ̄dissociationfractureꎬbywhichitcanbejudgedthatthequasi ̄dissociationfractureisthemainfracturemechanism.
2019电子工艺技术Electronics Process Technology第年1月40卷第1期25
摘 要:陶瓷封装柱栅阵列器件(CCGA)具有互联密度高、电热性能优异以及内部连通性好等特点,加
之其可实现很多逻辑和微处理功能,已广泛应用于许多领域。结合实际应用,简要介绍了CCGA的器件结构和
焊接难点,详细论述了CCGA器件焊接的相关问题及过程控制,提出了改善CCGA组装质量的工艺方法,可供研
究和从事CCGA器件焊接的工程技术人员借鉴或参考。
关键词:陶瓷柱栅阵列器件;CCGA;组装工艺;焊接;可靠性
中图分类号:TN605 文献标识码:A 文章编号:1001-3474(2019)01-0025-05
Abstract: Ceramic Column Grid Array (CCGA) package has been widely used in many industry fields due to the high
interconnection density, excellent electro-thermal performance, and good internal connectivity, as well as the realization of
many logic and micro-processing functions. Briefly introduce the structure and soldering diffi culties of CCGA based on practical
application. Discuss the relevant problems and process control during soldering CCGA. Put forward the process method to
improve the assembly quality of CCGA, which can be used for reference by engineers and technicians engaged in soldering CCGA.
英国大学等合作研究硫化镓镧(GaLaS)玻璃材料
佚 名
【期刊名称】《建筑玻璃与工业玻璃》
【年(卷),期】2017(000)001
【摘 要】英国南安普顿大学光电研究中心(ORC)和等离子应用(Plasma App
Limited)有限公司宣布正在一项为期一年、投资15万英镑的可行性研究上展开合作,探索硫族化合物玻璃全新薄膜涂覆技术和应用。该项目由英国创新机构“创新英国”、工程和物理科学研究委员会(EPSRC)联合提供资金支持,由南安普顿大学光电研究中心Dan Hewak教授所领导的“创新玻璃小组”负责研制,重点研究硫化镓镧(GaLaS或GLS)玻璃。
【总页数】1页(P45-45)
【正文语种】中 文
【中图分类】TQ171.72
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