搜索结果: 1-10 共查到“材料科学 conductivity”相关记录10条 . 查询时间(0.047 秒)
Thermal conductivity of mass-graded graphene flakes
Thermal conductivity mass-graded graphene flakes nonequilibrium molecular dynamics simulations
2011/8/16
Abstract: In this letter we investigate thermal conductions in mass-graded graphene flakes by nonequilibrium molecular dynamics simulations. It shows mass-graded graphene flakes reveal no thermal rect...
Ionic conductivity in oxide heterostructures: the role of interfaces
Ionic conductivity oxide heterostructures role of interfaces
2010/11/25
Rapidly growing attention is being directed to the investigation of ionic conductivity in oxide film heterostructures. The main reason for this interest arises from interfacial phenomena in these hete...
Development of novel thermoelectric materials by reduction of lattice thermal conductivity
Development novel thermoelectric materials reduction lattice thermal conductivity
2010/10/12
Thermal conductivity is one of the key parameters in the figure of merit of thermoelectric materials. Over the past decade, most progress in thermoelectric materials has been made by reducing their th...
Achieving combined high strength and high conductivity in re-processed Cu-Cr alloy
Metallic alloys Cu-alloys Mechanical Properties
2009/12/14
Purpose: Precipitation hardening by nano-sized precipitates had proven to be the most adequate way to achieve the optimum combination for strength and conductivity in copper based alloys. However, pre...
Experimental investigation of viscosity and thermal conductivity of suspensions containing nanosized ceramic particles
I. Tavman A. Turgut M. Chirtoc H.P. Schuchmann S. Tavman
2009/12/2
Purpose: In this study we report measurements of effective thermal conductivity by using 3ω method
and effective viscosity by vibro-viscometer for SiO2-water and Al2O3-water nanofluids at different p...
Structure and AC conductivity of polycrystalline Pb(Cd1/3Nb2/3)O3
Ferroelectrics Phase transition Polarization
2009/12/2
Purpose: Purpose of this work was to determine crystalline structure and ac electric conductivity of polycrystalline
sample Pb(Cd1/3Nb2/3)O3 (PCN) in paraelectric phase. Controversies involving uncer...
Effect of polydispersity in conductivity of unidirectional cylinders
Effective conductivity Fibre composite Polydispersity
2009/12/2
Purpose: Purpose of this paper is to study the effective thermal conductivity of infinite unidirectional circular
cylinders arbitrary distributed in a uniform host.
Design/methodology/approach: Appl...
Effect of the microstructure of EB-PVD thermal barrier coatings on the thermal conductivity and the methods to reduce the thermal conductivity
Thermal barrier coatings (TBCs) Electron beam-physical vapour deposition (EB-PVD) Thermal conductivity Zirconia
2010/8/16
Thermal Barrier Coatings (TBCs) were first successfully tested in the turbine section of a research gas turbine engine in the mid-1970s. By the early 1980s they had entered revenue service on the vane...
Problems for determining the thermal conductivity of TBCs by laser-flash method
Ceramics Thermal conductivity TBCs
2010/2/4
Design/methodology/approach: The air plasma-spray (APS) technique was used to deposition of two- and three-layered samples. Two-layered samples were composed of metal substrate (321 stainless steel), ...
Microstructural and electrical conductivity properties of cubic zirconia doped with various amount of titania
Ceramics Electrical properties Cubic zirconia
2010/2/9
Purpose: A dopant concentration higher than the optimum may reduce the number of mobile oxygen ions because of defect association causing conductivity degredation. In this study, the effect of TiO2 ad...