نتایج جستجو برای: silicon carbide particle

تعداد نتایج: 258289  

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2012
r. arokiadass* k. palaniradja n. alagumoorthi

metal matrix composites have been widely used in industries, especially aerospace industries, due to their excellent engineering properties. however, it is difficult to machine them because of the hardness and abrasive nature of reinforcement elements like silicon carbide particles (sicp).in the present study, an attempt has been made to investigate the influence of spindle speed (n), feed rate...

2017
Shireen Adenwalla P. Welsch Jennifer I. Brand A. Sezer Brian W. Robertson S. Adenwalla B. W. Robertson

2016
Nuo Zhang Liwei Lin

Silicon Carbide Bipolar Junction Transistors for High Temperature Sensing Applications

2016
A. Gali

Isolated point defects possessing a high spin ground state and below-band-gap excitation may play a key role in realizing solid state quantum bits in semiconductors which are the basic building blocks of quantum computers. The silicon vacancy in silicon carbide provides these features, making it a feasible candidate in this special and emerging field of science. However, the exact nature of the...

2004
John D. Blevins

Wide bandgap semiconductors have expanded the scope of device applications beyond those of silicon and gallium arsenide. Exploitation of wide bandgap semiconductors holds promise for revolutionary improvements in the cost, size, weight and performance of a broad range of military and commercial microelectronic and opto-electronic systems. The inherent material properties of silicon carbide, gal...

2017
Rikke Bramming Jørgensen Ida Teresia Kero

Airborne particulate matter in the silicon carbide (SiC) industry is a known health hazard. The aims of this study were to elucidate whether the particulate matter generated inside the Acheson furnace during active operation is representative of the overall particulate matter in the furnace hall, and whether the Acheson furnaces are the main sources of ultrafine particles (UFP) in primary SiC p...

2013
N. S. Pawar R. L. Shrivastava

A number of investigations carried out in an abrasive jet machining process having a traditional material with traditional nozzle. In some publication are focusing on water jet cutting machining and some are focusing on sand bond grinding , some work are wear behavior of nozzle and some are on performance of material in water jet machining. The present research work give an analysis of performa...

ژورنال: مجله دندانپزشکی 2013
آرامی, سکینه, حسنی طباطبایی, معصومه, فراهت, فرناز, میرزایی, منصوره, پهلوان, ایوب, کرمانشاه, حمید, یاسینی, اسماعیل,

Background and Aims: To evaluate the effect of polishing on surface roughness of silorane-based composite using profilometery and Scanning Election Microscopy (SEM) and compare it with that of a methylmethacrylate-based composite and a glass ionomer. Materials and Methods: In this study, 3 groups (n=28) were tested: specimens of two composites (Filtek P90 and Filtek P60) and a glass ionomer (F...

2015
Andrzej Borkowski Mateusz Szala Tomasz Cłapa

In this study, we demonstrated a significant adsorption of Pseudomonas putida bacteria onto aggregates of nanofibers (NFSiC) and nanorods (NRSiC) of silicon carbide (SiC) in aqueous suspensions. Langmuir and Freundlich isotherms were used to quantify adsorption affinities. It was found that adsorption of the bacteria strongly depended on the structure of the silicon carbide and the pH of the aq...

2001
Marilena PETRAN Aristotel COCÂRLA Dorin C. OLINICI

Silicon Carbide Induced Pneumoconiosis: A Microscopic and Biochemical Experimental Study: Marilena PETRAN, et al. Hospital of Occupational Medicine Cluj-Napoca—The pneumoconiogenic effects of silicon carbide were studied in an experimental model by intratracheal instillation of a dose of 50 mg silicon carbide, standardized and commercialized by Duke Scientific Corporation, in a group of 30 guin...

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