Dynamic mechanical properties of aluminum nitride/cyanate ester composites for high performance electronic packaging

2009 ◽  
pp. n/a-n/a
Author(s):  
Wei Ling ◽  
Aijuan Gu ◽  
Guozheng Liang ◽  
Li Yuan ◽  
Jie Liu
Keyword(s):  
Mechanical Properties ◽  
Aluminum Nitride ◽  
Electronic Packaging ◽  
High Performance ◽  
Dynamic Mechanical Properties ◽  
Cyanate Ester ◽  
Dynamic Mechanical

Static, dynamic mechanical properties and microstructure characteristics of ultra-high performance cementitious composites

2012 ◽  
Vol 19 (3) ◽  
pp. 237-245 ◽  
Author(s):  
Wenhua Zhang ◽  
Yunsheng Zhang ◽  
Guorong Zhang
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
High Performance ◽  
Steel Fiber ◽  
Construction Material ◽  
Dynamic Mechanical Properties ◽  
Fine Aggregate ◽  
Dynamic Impact ◽  
Dynamic Mechanical ◽  
Reactive Powder

AbstractA new type of construction material named ultra-high performance cementitious composite (UHPCC) was developed in order to reduce the production cost and energy consumption of reactive powder concrete (RPC). Six different mixture proportions of UHPCC were designed, and their properties, including workability (slump test), static mechanical properties (compressive strength and flexure strength), and dynamic mechanical properties (dynamic compressive strength, toughness and fracture pattern), were investigated. Finally, the microstructure of the UHPCC was studied. The experiment result indicate that the compressive and flexural strength of UHPCC can reach 150–200 MPa and 15–50 MPa under standard curing conditions, respectively, which is close to RPC200. Besides, the steel fiber has significant improvement on mechanical properties of UHPCC. The dynamic impact test results show that UHPCC has obvious strain rate effects. Besides, UHPCC exhibits excellent properties to resist dynamic impact. The microstructure investigation showed that UHPCC has dense microstructures and very strong bonds of the interfacial transition zone between cementitious paste and fine aggregate steel fiber.

Quasi-static and dynamic mechanical properties of eco-friendly ultra-high-performance concrete containing aeolian sand

2019 ◽  
Vol 97 ◽  
pp. 369-378 ◽  
Author(s):  
Jinyang Jiang ◽  
Taotao Feng ◽  
Hongyan Chu ◽  
Yirui Wu ◽  
Fengjuan Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
High Performance Concrete ◽  
Dynamic Mechanical Properties ◽  
Ultra High Performance Concrete ◽  
Aeolian Sand ◽  
Dynamic Mechanical

scholarly journals Improving the Dynamic Mechanical Properties of XNBR Using ILs/KH550-Functionalized Multilayer Graphene

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2800
Author(s):  
Duoli Chen ◽  
Chaoliang Gan ◽  
Xiaoqiang Fan ◽  
Lin Zhang ◽  
Wen Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Dynamic Mechanical Properties ◽  
Interfacial Interaction ◽  
Multilayer Graphene ◽  
Butadiene Rubber ◽  
Functionalized Graphene ◽  
Dynamic Mechanical ◽  
The Matrix ◽  
Modified Graphene

Graphene has been considered an ideal nanoscale reinforced phase for preparing high-performance composites, but the poor compatibility and weak interfacial interaction with the matrix have limited its application. Here a highly effective and environmentally friendly method for the functionalization of graphene is proposed through an interaction between as-exfoliated graphene and (3-aminopropyl) triethoxysilane (KH550), in which 1-butylsulfonate-3-methylimidazolium bisulfate (BSO3HMIm)(HSO4) ionic-liquids-modified graphene was prepared via an electrochemical exfoliation of graphite in (BSO3HMIm)(HSO4) solution, then (BSO3HMIm)(HSO4)-modified graphene as a precursor was reacted with amine groups of KH550 for obtaining (BSO3HMIm)(HSO4)/KH550-functionalized graphene. The final products as filler into carboxylated acrylonitrile‒butadiene rubber (XNBR) improve the dynamic mechanical properties. The improvement in the dynamic mechanical properties of the nanocomposite mainly depends on high interfacial interaction and graphene’s performance characteristics, as well as a good dispersion between functionalized graphene and the XNBR matrix.

scholarly journals Manipulating the thermal and dynamic mechanical properties of polydicyclopentadiene via tuning the stiffness of the incorporated monomers

e-Polymers ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 355-364 ◽  
Author(s):  
Jia Kuang ◽  
Nan Zheng ◽  
Chenglin Liu ◽  
Yubin Zheng
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Dynamic Mechanical Properties ◽  
Polymer Structure ◽  
Dynamic Mechanical Property ◽  
Optimal Conditions ◽  
Dynamic Mechanical ◽  
Curing Agents ◽  
The Relationship ◽  
Polymerization Conditions

AbstractThe application of polydicyclopentadiene (polyDCPD) as a high-performance thermosetting resin is often hindered by the simplicity and limitation of the polymer structure, making it unlikely to improve their thermal and dynamic mechanical properties by further optimizing the polymerization conditions. In this study, we developed a copolymer system which consisted of dicyclo-pentadienes and various designed monomers as excellent curing agents. The incorporated monomers bearing different stiffness and rigidity contain two active functional groups at the end of the structures and are capable of reinforcing original polyDCPD. The incorporated monomers notably enhanced the thermal and dynamic mechanical properties of polyDCPD. Besides that, the relationship between the stiffness of the monomer and the thermal and dynamic mechanical properties of polyDCPD was evaluated in detailed. Because of the simplicity and adjustability of copolymerization approach, optimal conditions of the copolymers with best property-reinforcing capability were systemically identified. The optimal materials displayed desired thermal and dynamic mechanical property and markedly outperformed the original polyDCPD.

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