Search results

Generally, n is 0.5 for materials with a direct band gap, and n is 2 for materials with an indirect band gap [5].
Acknowledgements This material is based upon work supported by the Malaysia Toray Science Foundation.
Tu, CuO/graphene composite as anode materials for lithium-ion batteries, Electrochim.
Yuan, Mesoporous Ce0.8Zr0.2O2 solid solutions-supported CuO nanocatalysts for CO oxidation: A comparative study of preparation methods, Journal of Materials Science 44/24 (2009) 6663
Caglar, Materials Science-Poland 25/3 (2007) 709

In case of clearly viscous materials, like the water, the delay is 90°.
Because the copper alloys are elastic materials, the σ bending stress and the deformation should have be in the same phase [1].
It means that in certain cases, the investigated copper alloys also can show similar properties than visco-elastic materials.
Fried: Polymer Science and Technology [2] Raymond A.
Volume 2: Properties and Selection: Nonferrous Alloys andSpecial-Purpose Materials [4] William F.

The material of the expandable cased-hole liner is soft state 316L, it is austenitic stainless steel.
: Material thickness.
(3) Minimum bending radius associated with the type of material, the material of the expandable cased-hole liner is soft state austenitic stainless steel.
: Ultimate tensile strength of materials
: Material thickness.

Introduction Sealing materials with low melting point is one of the necessary materials for a vacuum device, microelectronic devices and integrated circuits in electronic field.
Bi2O3, BaO and ZnO have been employed as candidate materials that can replace PbO, particularly in the PbO-B2O3-SiO2 system[1].
Recently, glasses in the system Bi2O3–SiO2–ZnO that fuse at low temperatures and present low toxicity have been developed as lead-free vitreous materials.
Zeng, Preparation of Sealing Glass Ceramics Rich in Bi2 O3 and Its Performance Analysis[J], Materials Review, 22(2008): 375-377
Volf, Chemical Approach to Glass[J], Glass Science and Technology, 7(1984):594

Due to the poor technology management and negligence during the construction, concrete materials have defects such as honeycomb, holes, looseness, and poor Cementation between steel tube and concrete, which weaken the overall performance of the component in varying degrees.
Thermal parameters, time condition and boundary conditions Hypothesis: (1) materials in the concrete-filled steel tube are seen as regular materials with multilayer, continuous, isotropic nature. (2) To ignore the thermal contact resistance between the steel tube wall and the core concrete. (3) The convective heat transfer coefficient of the surface of Steel tube is a constant.
Thermal parameters used in the model Materials Ρ(kg/m3) C(J/(kg·℃) λ（W/（m·℃） α（*10-5m2/sec） Concrete 2000 970 0.79 0.0407 Construction steel 7800 465 50 1.172 Air 1.165 1005 0.03 2.562 3.
Peking: Science Press, 1998.
Chinese Journal of Computational Mechanics. 2007, Vol.(05): 579-584.

The materials of the up and down inclined blades in the five-segment arch system were relatively small and also different in length.
The materials used in the plain wood of tri-segment arch and five-segment arch were great, and also the head and tail of wood materials were overlapped.
Sichuan Building Science, 2011, 37 (4): 104~107
Journal of Fuzhou University (Natural Science Edition), 2011. 39 (6): 917~921
Building Science, 2012. 28 (1): 108~110

Age-hardening of rheo-high pressure die cast Al-alloy 6066 TAUTE Carlien1,a *, MÖLLER Heinrich2, b 1Department of Materials Science and Metallurgical Engineering, University of Pretoria, Pretoria, 0001, South Africa 2Council for Scientific and Industrial Research (CSIR), Pretoria, 0001, South Africa aaurora247@hotmail.com, bhmoller@csir.co.za Keywords: rheo-high pressure die casting (R-HPDC), alloy 6066, age-hardening, solution heat treatment, Vickers Hardness.
Acknowledgements The Department of Science and Technology (DST) in South Africa is acknowledged for funding under the Advanced Metals Initiative Program.
Turkish Journal of Engineering and Environmental Sciences 31 (2006) 53-60
Materials Science Forum 794-796 (2014) 137-142
Materials and Manufacturing-Casting.

Experimental Program and Methods Material: The material selected for this investigation is an aluminium alloy AA7075-T7351 plate of 6.35 mm (0.25 inch) thickness, used extensively in the manufacture of typical airframe structures.
Grandt, Jr., Fracture mechanics consideration of residual stresses introduced by cold working fastener holes, Journal of Engineering Materials and Technology, 102 (1980) pp. 85-91
Reid, Aging aircraft repair strategies utilizing cold expansion technologies – Part 1, The science of cold expansion, PowerPoint presentation, Ageing Aircraft User’s Forum, 23-25 May, 2007, Brisbane, Australia
Schijve, Fatigue of Structures and Materials, Second Edition with CD-ROM, Springer Science + Business Media, B.
Clark, Modelling residual stresses and fatigue crack growth at cold expanded fastener holes, Fatigue and Fracture of Engineering Materials and Structures, 14. 5 (1991), pp. 575-581

Applying advanced research methods based on metallurgical sciences allowed us to conclude on a raw materials used for production of the investigated objects.
The work has been implemented within the framework of statutory research of AGH University of Science and Technology, contract No 11.11.170.318 - 11 AGH.
Aschenbrenner, The Occurence of Metallic Iron in Ancient Copper, Journal of Field Archaeology 2/3 (1975) 251-266
Kacprzak (Eds.), Binary Alloy Phase Diagrams, ASM International, Materials Park, Ohio, 1990
Kruszyński (Eds.), Ancient Caucasian and Related Material in The British Museum, The British Museum Press, London, 2002, pp. 87-98

One of the still open research front end is the enhancement of the material formability, especially for some alloys.
As the temperature increase was localized near the forming tool, i.e. in the area of the material that is being formed in a given moment, no detrimental effect related to keeping the material at elevated temperatures for long times is produced.
It should be observed that no former accumulated plastic strain and/or material strain hardening have been taken into account.
The numerical model was utilized to explain the different behavior of the material at the varying of the process conditions.
Hagan E: Proceedings of the IMechE, Part B: Journal of Engineering Manufacture Vol.218B10 (2004), p. 1307 [3] H.