نتایج جستجو برای: metals and alloys

تعداد نتایج: 16851033  

Journal: :Dental materials journal 1998
H Ohno Y Yamane K Endo Y Araki Y Iizuka

New dental precious metal alloys for resin bonding without alloy surface modification were developed by adding base metals (In, Zn, or Sn). Before this, binary alloys of Au, Ag, Cu, or Pd containing In, Zn, or Sn were studied for water durability and bonding strength with 4-META resin. The adhesion ability of the binary alloys was improved by adding In equivalent to 15% of Au content, Zn equiva...

2006

Although all metals are subjected to the general oxidation reaction (I), the tendencies to ionize differ from metal to metal. When two metals are exposed to an aquenous environment and release electrons according to reaction (I) , an electric potential is induced the standard value of which can be measured when the metals are in 1-molar solutions of their own salts at a predetermined temperatur...

2013
R. F. Bunshah D. L. Douglass

Two major areas of effort are encompassed: I. New Techniques for the Synthesis of Metals and Alloys The High Rate Physical Vapor Deposition (HRPVD) process is to be used for the following: 1. Preparation and characterization of Ni and Ni-20Cr alloy sheet 2. Synthesis of compounds Y-O., TiC, Si^N, by reactive evaporation and their characterization 3. Dispersion strengthened alloys, Ni-ZOCr-Y-O ,...

1999
N. ELIAZ

Theories, experimental results and applications associated with hydrogen behavior in amorphous metals and alloys are reviewed. An emphasis is made on the potential use of these advanced materials for hydrogen storage technology. Therefore, several properties that are especially relevant for such applications are assessed. These include structural models for hydrogen occupancy, sorption characte...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2010
M G Blaber M D Arnold M J Ford

Alternative materials are required to enhance the efficacy of plasmonic devices. We discuss the optical properties of a number of alloys, doped metals, intermetallics, silicides, metallic glasses and high pressure materials. We conclude that due to the probability of low frequency interband transitions, materials with partially occupied d states perform poorly as plasmonic materials, ruling out...

2011
T. Bryk

A short review of analytical and numerical results, obtained for collective dynamics in liquid metals and alloys within a theoretical approach of Generalized Collective Modes (GCM) is presented. The GCM approach permits to represent dynamic structure factors in wide ranges of wave numbers and frequencies as a sum of contributions from hydrodynamic and non-hydrodynamic processes. The origin of c...

2000
T. Cagin Y. Qi H. Li Y. Kimura H. Ikeda W. L. Johnson Yoshitaka Kimura Yue Qi Hao Li Hideyuki Ikeda William L. Johnson William A. Goddard

Recently, we have parametrized Sutton-Chen type empirical many body force elds for FCC transition metals to study the thermodynamic, mechanical, transport and phase behavior of metals and their alloys. We have utilized these potentials in lattice dynamics calculations and molecular dynamics simulations to describe the structure, thermodynamic, mechanical and transport properties of pure metals ...

2017
G. Busch H.-J. Güntherodt H. Künzi H. Meier H. A. MEIER

We have measured the magnetic susceptibility, the Hall coefficient and the electrical resistivity of liquid transition metals Fe, Co and Ni alloyed with normal metals. Up to now the investigated alloys can be divided into two groups according to the behaviour of the magnetic susceptibility. The typical behaviour is represented by the liquid alloys of Co-Ge and Au-Ni. In the first group the magn...

2012
Hamoon Zohdi Mohammad Emami Hamid Reza Shahverdi

There is a wide variety of dental alloys, ranging from nearly pure gold and conventional gold-based alloys to alloys based on silver, palladium, nickel, cobalt, iron, titanium, tin, and other metals (Table 1). The types of dental alloys have increased significantly since 1980s in order to change the market price of gold and palladium. Although gold alloys are the mate‐ rials of choice in this a...

2005
L. R. ZHENG

of current literature on the platinum metals and their alloys

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