Materials Literature
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The formation of anodic aluminium oxide (AAO) membrane in anodising process has been studied. The anodising process was done in two different type of electrolyte which are single phosphoric acid and a mixture of phosphoric acid and acetic acid. This study was done to determine the influence of this mixed electrolyte t…
Thermal stresses arise in components that are subject to temperature gradients, and the thermal transients associated with engine operations are of particular concern. Residual stresses arise because of nonuniform plastic deformation. They are important because they affect resistance to fatigue and stress corrosion cr…
Compressive creep tests have been carried out on two sand cast commercial zinc-rich alloys in the stress range 20 to 100 MPa, and at temperatures from 70 to160°C. A parametric relationship was obeyed, of the form: In t = C' - n(lna) + Q/RT, where C' is a constant, a the applied stress, t the time of test, n the stress…
Titanium and some its alloys represent the better metallic materials with high biocompatibility useful to realise many biomedical prostheses and implants. Special fix and movable titanium based prostheses are found in Dentistry and Orthopaedy, such as dental implants, knee and hip articulation anchorages.The functiona…
Important aspects of failure analyses are the safekeeping and recording of evidence, the determination of dimensional characteristics, alloy identification, the study of fracture surfaces (fractography), and the determination of residual stresses by X-ray analysis. This chapter describes some of the more common method…
AbsltsctEndodontic instruments in NiTi olloy, useful in dentistry for reslorotive procedures, ore investigoted in terms of functionality, mechonicol weor ond .temperoturedependence.The instruments ore síudied by dynomicol mec.honicol thermal onolysis, differentiol sconning calorimetry, weor tests ond sconn.ingeleclron…
Over the next few decades an optimization of existing materials will drive the evolution of structural metals. The focus will be on low cost manufacturing technologies for easy recycling. Integrated product development methodologies put in place in design platforms environment are the key for a succesfull exploitation…
This paper proposes a new model for Giant Magnetoresistance (GMR) and calculates its typical graph qualitatively. The model foundation is the microscopic mechanism in GMR, where the GMR effect can be explained by intrinsic and extrinsic potential. The potentials are spin-dependent. The potentials determine the transmi…
During the last few years the use of magnesium based alloys is increasing in many application fields, due to their low specific weight. Usually these materials are controlled with elemental analysis and mechanical tests. In order to better understand their characteristics, we developed a method for the qualitative a…
Ball-milling graphite was conducted in miscible solutions with the purpose to exfoliate graphene. Colloid-like stable supernatants were unexpectedly obtained. Followed were the characterizations with Scanning electronic microscopy, Thermogravimetric analysis, X-ray diffraction and Elemental dispersive X-ray mapping to…
Accurate computational methods to predict the solubility of crystalline organic molecules in water are highly sought after in many fields of the biomolecular sciences. For example, predictions of solubility are used in the agrochemical and pharmaceutical industries to assess the environmental fate of potential polluta…
AbstrrarctThe influence of stroin rote on lhe frocture behoviour of sintered Co- conÍoining tungsten heavy alloy is exomined using oplicol, scanning elecÍron mícrosc.opy(SEM) ond fine-probe energy dispersive spectroscop:y (EDS) nicroonolysis techniques.The Co oddition hos improved the strengih of tungsten olloy.Howeve…
The aim of the work presented was to investigate the effects of upper bainite on impact \ntoughness in quench and tempered low alloy plate steels. The experimental research included \nconstruction of CCT diagrams by dilatometry, verification of phases by optical microscopy \n(OM), Vickers hardness, scanning electron m…
Current Federal Aviation Regulations require costly and time consuming crashworthiness testing to certify aircraft. These tests are only capable of a limited assessment of progressive damage and all crash configurations and scenarios cannot be physically evaluated. Advancements in technology have led to accurate and e…
The deposition of Al film onto the (111) surface of a p-Si crystal was shown\nto induce a deformation in the near-surface layer of the latter. Provided that\nthe crystal strain is elastic and uniaxial, the gettering of defects in the\nnear-surface layer is observed, which is confirmed by a change in the\ndependence of…
We present computer simulations of concentrated solutions of unknotted nonconcatenated semiflexible ring polymers. Unlike in their flexible counterparts, shrinking involves a strong energetic penalty, favoring interpenetration and clustering of the rings. We investigate the slow dynamics of the centers-of-mass of the…
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to Bioactive Chemical Nanopatterns Impact Human Mesenchymal Stem Cell FateZhe A. Cheng, Omar F. Zouani*, Karine Glinel, Alain M. Jonas*, and Marie-Christine Durrieu*Cite this: Nano Lett. 2013, 13, 10, 4996Publ…
This chapter deals with brittle fracture and ductile fractures, and the transition from brittle to ductile fracture that occurs in steels as the temperature is increased from a low to a higher level. The term ductile failure includes not only the separation process but, in certain forming operations, the process of ne…
The author studied in \cite{shi} the covering map property of the local homeomorphism associating to the space of stability conditions over the $n$-Kronecker quiver. In this paper, we discuss the covering map property for stability conditions over the Dynkin quiver of type $A_3$. The local homeomorphism from a connect…
Efficient, on-chip optical nonlinear processes are of great interest for the development of compact, robust, low-power consuming systems for applications in spectroscopy, metrology, sensing and classical and quantum optical information processing. Diamond holds promise for these applications, owing to its exceptional…