temperature cycling test是什么意思

temperature cycling test

温度循环试验

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温度循环测试

双语例句百度百科

1

The compose and microstructure of intermetallic compound after temperature cycling test are also observed by scanning electron microscope ( SEM).

通过扫描电镜（SEM）对温度循环试验后焊球金属间化合物（IMC）层和剪切强度试验后的断裂面进行了形貌、结构和组分的观察及分析.

2

uniaxial stress and temperature cycling test

单轴应力-温度循环试验

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Compound material is appear in response to the modern science technique shape surging of have biggest the material of vitality, it from 2 kinds or more than two materials with variant property, combine through various industrial art resort.Reunite the severalty constitutive enzyme unit of material to rise synergy on the properties, receiving single material can not analogy of superior of association properties, therefore, reunite material to have become contemporary kind of constructional material of new model.Modern metalloporphyrin radical composite material the initial issue stretch from the 60's in 20th century.At the beginning of in 60's distinguish the space evolve two greatest camps with arch u.s. - soviet of the rivalry aroused aerospace navigation technical shape, facilitate orientation set composite material, difficult permit the gauze enhancement heat alloy of the research and tapping of material.Because the triturate of boron fiber wins, and Be applied to the epoxy resin radical composite material, therefore appeared boron fiber enhancement the aluminium base reunite material, and received a successful appliance.

Metalloporphyrin laminated wood can process through a lot of mode of productions but become, such as blast composite logarithm of timw fitting method logt, solid-the liquid combine together logarithm of timw fitting method logt and solid phase association logarithm of timw fitting method logt etc..Among them cold rolled composite merit polypeptide, is metalloporphyrin that has much of a shape potential lay-like in shape composite material to make processing technology.The cold rolled compound board stranding system wants to steer definite heat treatment behind to reenforce interface of association strength, but also bring a definite subject at the same time if forming a prejudice in the interface the etc. is at the compound of the interface association, therefore need the study that goes deep into in the middle of the course vs the heat treatment formulating law undertake of interface compound, for the purpose of further excellent chemical engineering skill make foul surface to combine good and be easy to the compound material of transform.

Copper|aluminium composite the board is a lay-like in shape classical metalloporphyrin composite material, have a good many good characteristic, like Gao Bi's strength, and amount of Gao Bi Mo...etc., have extensive appliance fore ground.The text selects aluminium|copper the lay-like in shape composite material is a research object, make use of gold phase(OM) and X-ray first the Yan shot instrument(XRD), scanning electric mirror(SEM) etc. experiment resort to study after heat treatment cold rolled Al|Cu composite interface intermediate compound formulating law, heat treatment industrial art secondly adopt to quickly and circularly heat, study Al|Cu composite knothole interface association the related mechanics characteristic of condition and material.

Test a research result manifestation, after certain gradient of temeprature and the heat treatment in time area concentration diagram, in the aluminium|copper composite there is intermediate compound creation on the interface, the creation of intermediate compound has definite conceive time area concentration diagram.Interface intermediate compound lay thickness with the raise and raise in time area concentration diagram, interface phase the category also correspond to increase.In 500 ℃ , the heat preservation will generate intermediate compound phase after 10 minutes, but when 500 ℃ heat preservations 32 hour after, the intermediate compound lay thickness has already come to a 92 μ ms.The heat treatment gradient of temeprature is also interface intermediate compound creation with cardinal impact factor for growing up, along with the gradient of temeprature raise, the interface compound lay as well raises.In the process of annealing to spread amid, the imprimis generates of the intermediate compound mutually is an Al2 Cus, then is AlCu.Lengthen along with heat treatment time area concentration diagram, successively appear an other mutually.The intermediate compound mutually has definite brittleness, the prejudice combines at the interface.

The experiment also detects that the intermediate compound is in the process of annealing amid of the growth receptorceiving spreads of control, the thickness relates to conform a kind of parabolic curve law with the variance in time area concentration diagram, thereof our initial created the kinetics form of intermediate compound growth.

金相切片，又名切片，cross-section, x-section, 是用特制液态树脂将样品包裹固封，然后进行研磨抛光的一种制样方法，检测流程包括取样、固封、研磨、抛光、最后提供形貌照片、开裂分层大小判断、或尺寸等数据。

主要用途：是一种观察样品截面组织结构情况的最常用的制样手段。

1： 切片后的样品常用立体显微镜或者金相测量显微镜观察 ：固态镀层或者焊点、连接部位的结合情况，是否有开裂或微小缝隙（1um以上的）；截断面不同成份的组织结构的截面形貌，金属间化合物的形貌与尺寸测量；电子元器件的长宽高等结构参数可用横截面的办法用测量显微镜测量；失效分析的时候磨掉阻碍观察的结构，可以露出需要观察的部分，例如异物嵌入的部位等，进行观察或者失效定位。

2：切片后的样品可以用于金相显微镜/SEM/EDS扫描电镜与能谱观察形貌与分析成份。

3：作完无损检测如x-ray，SAM的样品所发现的疑似异常开裂、异物嵌入等情况，可以用切片的方法来观察验证。

4：切片后的样品可以与FIB联用，做更细微的显微切口观察。

试验周期：

1、制样固化需一天时间，研磨抛光拍照半天时间，写报告几小时时间，共需2天；

2、采用快速固化需2小时，研磨抛光半天时间加上写报告时间，共需一天。

受限制因素：

  1：样品如果大于5厘米x5厘米x2厘米，就需要用切割等办法取样后再进行固封与研磨。

2：最小观察长度1微米，再小的就需要用到FIB来继续做显微切口。

3：常规固化比快速固化对结果有利，因为发热较小，速度慢，样品固封在内的受压缩彭胀力较小，固封料与样品的粘结强度高，在研磨的时候极少发生样品与固封树脂结合面开裂的情况。

4：是破坏性的分析手段，要小心操作，一旦样品被固封或切除、研磨，样品就不可能恢复原貌。

金相切片试验步骤：

取样---镶嵌---切片---抛磨---腐蚀---观察。

深圳市三昊仪器设备有限公司--昊林

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