Results 21 to 30 of about 2,164,777 (221)

Ancient Ceramic Casting Molds from the Southern Russian Far East: Identification of Alloy Traces via Application of Nondestructive SEM-EDS and pXRF Methods

Heritage, 2021
The investigation presented in this paper is a unique assemblage of ceramic casting molds discovered at one of the sites from the Bohai period (698–926) in the territory of the southern Russian Far East.
Irina S. Zhushchikhovskaya, Igor Yu. Buravlev   +1 more
doaj   +1 more source

Advanced Boron Carbide Matrix Nanocomposites Obtained from Liquid-Charge: Focused Review

Condensed Matter, 2023
Boron carbide is known as a hard material; it possesses a unique complex of physical-mechanical properties and has diverse applications in industries.
Levan Chkhartishvili, Archil Mikeladze, Otar Tsagareishvili, Vakhtang Kvatchadze, Valery Tavkhelidze, Zviad Mestvirishvili, Dimitri Driaev, Natia Barbakadze, Lili Nadaraia, Ketevan Sarajishvili, Irma Jinikashvili, Manana Buzariashvili, Roin Chedia   +12 more
doaj   +1 more source

Casting Technology Experiment and Computer Modeling of Ornaments from Bronze Age [PDF]

Archives of Metallurgy and Materials, 2018
The casting workshop was discovered with numerous artifacts, confirming the existence of the manufacturing process of metal ornaments using ceramic molds and investment casting technology in Lower Silesia (Poland) in 7-6 BC.
A. Garbacz-Klempka, J.S. Suchy, Z. Kwak, P. Długosz, T. Stolarczyk   +4 more
doaj   +1 more source

Effects of Brazing Technology on Hermeticity of Alumina Ceramic-Metal Joint Used in Nuclear Power Plants

Frontiers in Materials, 2021
Taking the brazing mechanism of alumina ceramics and kovar alloys as the main research object, based on the molybdenum–manganese metallization method, the influence of the direct and indirect brazing processes on the morphology of the final connected ...
Nengmei Deng, Jun Zhao, Lilin Yang, Zhiqin Zheng, Zhiqin Zheng, Zhiqin Zheng, Zhiqin Zheng   +6 more
doaj   +1 more source

The effect of thermal and mechanical cycling on bond strength of a ceramic to nickel-chromium (Ni-Cr) and cobalt-chromium (Co-Cr) alloys

Indian Journal of Dental Research, 2012
Purpose: This study evaluates the effect of thermo-mechanical cycling (TMC) on the bond strength of a ceramic to three cobalt-chromium (Co-Cr) and two nickel-chromium (Ni-Cr) alloys.
M Vojdani, S Shaghaghian, A Khaledi, S Adibi   +3 more
doaj   +1 more source

Comparative evaluation of effect of laser on shear bond strength of ceramic bonded with two base metal alloys: An in-vitro study

Indian Journal of Dental Research, 2013
The most common clinical failure in metal ceramic restoration is at the ceramo-metal interface. For the clinical longevity, metal-ceramic prostheses must have satisfactory bond strength between metal and ceramic. Aim and Objective: The aim of this study
K Deepak, S C Ahila, B Muthukumar, M Vasanthkumar   +3 more
doaj   +1 more source

Tribocorrosion of total hip replacements [PDF]

, 2012
The performance of metal-on-metal total hip replacements is largely determined by their propensity to degrade in vivo. Degradation occurs through the complex interactions between wear and corrosion (termed tribocorrosion) and leads to the production of ...
Hesketh, James Edward Tilston
core   +6 more sources

Discrepancy in alloy composition of imported and non-imported porcelain-fused-to-metal (PFM) crowns produced by Norwegian dental laboratories

Biomaterial Investigations in Dentistry, 2020
Purpose Even though the use of full ceramic crowns have become a well-established practice in dental clinics compare to the last decade, the use of imported casted porcelain-fused-to-metal (PFMs) crowns is still prevalent.
Håvard Jostein Haugen, Brandon Michael Soltvedt, Peter N. Nguyen, Hans Jacob Ronold, Gaute Floer Johnsen   +4 more
doaj   +1 more source

Residual stresses in ceramic metal assembly after brazing process [PDF]

, 2006
The framework of this study is the thermo-mechanical analysis of the brazing process of ceramic metal assemblies. The thermal expansion gradient between ceramic and metallic materials leads to the development of residual stresses during the cooling phase
B. Lorrain, V. Cazajus, Karama, Moussa, Welemane, Hélène, H. Welemane, Moussa Karama, Lorrain, Bernard, Cazajus, Vincent   +7 more
core   +1 more source

Effect of Support Structure in Au/Al2O3-TiO2 Catalysts in Low-Temperature CO Oxidation

E3S Web of Conferences, 2016
The aim of this study was to determine the effect of the support phase composition (Al2O3–TiO2) and the addition of gold on the catalytic properties in low-temperature CO oxidation.
Rajska Maria, Długosz Piotr, Zybała Rafał   +2 more
doaj   +1 more source