نتایج جستجو برای: three alloys containing 1

تعداد نتایج: 3933741  

Journal: :Journal of dental research 1997
H Letzel M A van 't Hof G W Marshall S J Marshall

Data from 14 independent controlled clinical trials on the oral behavior of Classes 1 and 2 amalgam restorations, with a follow-up between five and 15 years, were re-evaluated by secondary analysis for the influence of alloy composition on the survival of amalgam restorations. For the analysis, 3119 restorations were available, which were made from 24 different alloys by a group of seven operat...

Journal: :مجله دندانپزشکی 0
نیره رشیدان n. rashidan فریده گرامی پناه f geramipanah

in this study, porcelain bond strength to three different alloys of gold-base, pd-ag and base-metal were compared and the effect of repeated porcelain sintering on bond strength was evaluated. the obtained results showed best bond strength of porcelain with gold-base alloy. pd-ag and base-metal alloys showed less strength respectively. during repeated sintering of porcelain, bond strength has n...

Journal: :The Annals of occupational hygiene 2009
A Dufresne V Turcotte H Golshahi S Viau G Perrault C Dion

Exposure to beryllium compounds, both by inhalation and skin contact, may result in immune sensitization and chronic beryllium disease. The objective of the present research work was to study the feasibility of removing beryllium compounds from the surfaces of devices made of Be-Cu alloy and to estimate the frequency at which the surfaces had to be rubbed in order to evaluate the likelihood tha...

2014
Ho-Jun Song Mi-Kyung Han Hyeon-Gyeong Jeong Yong-Tai Lee Yeong-Joon Park

The microstructure, mechanical properties, and corrosion behavior of binary Ti-xPt alloys containing 5, 10, 15 and 20 wt% Pt were investigated in order to develop new Ti-based dental materials possessing superior properties than those of commercially pure titanium (cp-Ti). All of the Ti-xPt (x = 5, 10, 15, 20) alloys showed hexagonal α-Ti structure with cubic Ti₃Pt intermetallic phase. The mech...

2005
O. I. Barkalov

The paper will briefly review and discuss results of our investigations on the atomic correlations in amorphous Zn-Sb, GaSb, GaSb-Ge and Al-Ge alloys. These semiconductor alloys were prepared by solid state reactions in the course of heating the quenched highpressure phases. Structure of the final products was studied by neutron diffraction for the Al-Ge, GaSb and GaSb-Ge alloys and by transmis...

Journal: :Microelectronics Reliability 2012
Guang Zeng Stuart D. McDonald Kazuhiro Nogita

0026-2714/$ see front matter 2012 Elsevier Ltd. A doi:10.1016/j.microrel.2012.02.018 ⇑ Corresponding author. Tel.: +61 7 3365 1387; fax E-mail address: [email protected] (G. Zeng). The development of lead-free solder alloys for high-temperature applications is required to meet increasing demands for reliable replacements for lead-containing alloys. This paper provides a review of recent research...

2017
O.I. Gorbatov Yu. N. Gornostyrev P.A. Korzhavyi

The article contains computational data of many-body interactions in Al-Cu alloys, obtained using PAW-VASP calculations. Pairwise, three-site, and four-site interactions are presented. Mentioned data are relevant to the research article "Many-body mechanism of Guinier-Preston zones stabilization in Al-Cu alloys" (Gorbatov et al., 2017) [1].

2004
K. O. LEE JIN YU

Low-cycle, lap-shear fatigue behavior of Sn-based, Pb-free solder alloys, Sn3.5Ag, Sn-3.5Ag-Cu, Sn-3.5Ag-Bi, and Sn-0.7Cu, were studied at room temperature using specimens with printed circuit board (PCB)/solder/PCB structure under total displacement of ±10 μm, 12 μm, 15 μm, and 20 μm. The fatigue lives of various solder joint materials, defined as 50% load drop, were correlated with the fractu...

Journal: :Journal of oral pathology 1988
R G Craig C T Hanks

The cytotoxicity of a series of dental casting alloys in the as-cast and polished condition was determined with cell culture techniques involving phase contrast microscopy to examine cell morphology and the succinic dehydrogenase histochemical reaction to measure any ring of inhibition of Balb/c 3T3 cellular respiration around alloys. Crown and bridge casting alloys and a nickel- and a cobalt-b...

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