Article - 11 Jan 2006
Research on processing â“i3N4 ceramics and their thermal conductivity are reviewed. Thermal conductivities are greatly affected by processing parameters such as purity of raw powders, type and amount...
Article - 22 Nov 2010
In this study, the microstructural design, synthesis and evaluation for the quaternary Cr-Al-Si-N coatings were investigated. Also, the overall comparisons among CrN, Cr-Al-N, Cr-Si-N, and Cr-Al-Si-N...
Article - 7 Oct 2005
While magnesium alloys have excellent strength to weight characteristics, they have poor wear resistance when emplyed in friction applications. Reinforcing with Mg2Si dispersoids was found to be...
Article - 19 May 2006
In this paper researchers analyzed the structural evolution of a Si(001) surface and the change in surface composition during a reaction of MMGe on the surface. The researchers found that a c(4x4)...
Article - 12 Nov 2013
This article discusses using handheld raman spectrometers to define the difference between a-Si and c-Si in tertiary mixtures of methanol.
Article - 18 Oct 2005
With excellent high temperature strength, good resistance to oxidation and low coefficient of thermal expansion, Si3N4 ceramic is an important structural material. Properties and processing can be...
Article - 20 Jul 2001
Silicon is a relatively inert metallic element that is the second most abundant in the earths crust. Pure silicon is used in semiconductors, transistors, solar cells, rectifiers, electronics and as a...
Article - 1 Jun 2007
Geopolymers are materials similar to Portland cement but made from natural aluminosilicates. Geopolymers made from industrial byproducts like flyash and blast furnace slag may be used to encase...
Article - 30 Apr 2009
Seven commercial Si3N4 powders produced by different production processes, nitridation media and further acid treatments were analyzed by XPS technique. The XPS spectra of all as received powders show...
Article - 30 Jan 2002
Titanium alloys can be classified either by structure or strength. The main structures are alpha, beta and alpha-beta, which are described. Different strength classifications also exist, and this is...