Matrix-filler interfaces and physical properties of metal matrix composites with negative thermal expansion manganese nitride

2015 ◽  
Vol 118 (8) ◽  
pp. 084902 ◽  
Author(s):  
Koshi Takenaka ◽  
Kota Kuzuoka ◽  
Norihiro Sugimoto
Keyword(s):  
Thermal Expansion ◽  
Physical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Negative Thermal Expansion ◽  
Matrix Composites ◽  
Manganese Nitride

scholarly journals Interfacial Aspects of Metal Matrix Composites Prepared from Liquid Metals and Aqueous Solutions: A Review

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1400
Author(s):  
Peter Baumli
Keyword(s):  
Aqueous Solutions ◽  
Physical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Liquid Metals ◽  
Interfacial Phenomena ◽  
Matrix Composites ◽  
Good Adhesion ◽  
Mechanical And Physical Properties ◽  
The Matrix

The paper reviews the preparation of the different metallic nanocomposites. In the preparation of composites, especially in the case of nanocomposites, interfacial phenomena play an important role. This review summarizes the literature on various interfacial phenomena, such as wettability and reactivity in the case of casting techniques and colloidal behavior in the case of electrochemical and electroless methods. The main contribution of this work lies in the evaluation of collected interfacial phenomena and difficulties in the production of metal matrix composites, for both nano-sized and micro-sized reinforcements. This study can guide the composite maker in choosing the best criteria for producing metal matrix composites, which means a real interface with good adhesion between the matrix and the reinforcement. This criterion results in desirable mechanical and physical properties and homogenous dispersion of the reinforcement in the matrix.

Analysis of Impact of Selected Structure Parameters of Reinforcing Preforms for Metal-Matrix Composites on their Saturation Process

2013 ◽  
Vol 334-335 ◽  
pp. 219-224
Author(s):  
Dorota Nagolska ◽  
Katarzyna Gawdzińska
Keyword(s):  
Physical Properties ◽  
Metal Matrix Composite ◽  
Metal Matrix Composites ◽  
Mathematical Description ◽  
Metal Matrix ◽  
Geometrical Structure ◽  
Structure Parameters ◽  
Matrix Composites ◽  
Properties Of Materials ◽  
Materials Used

The process of saturation of reinforcement preforms for metal-matrix composite castings is dependent on many different factors. One group of these factors is related to the process of manufacturing of metal-matrix composites with saturated reinforcement. Another group is related to the physical properties of materials used for manufacturing of such composites. The structure of reinforcement preforms is one of such factors. Due to its complexity, its mathematical description is difficult to perform. This structure can be examined and described using physical properties like porosity or permeability. During the conducted analysis presented in the paper, it was checked whether there is a relation between studied physical properties of reinforcement preforms and a degree of their saturation. It was also determined, which of the studied parameters is the best for description of an influence of the geometrical structure of reinforcement preforms on the process of their saturation and in consequence, on the porosity of the obtained composite castings.

Influence of Coating Layer to Reduce Thermal Stresses in Cylindrically Formed Metal Matrix Composites

2000 ◽  
Author(s):  
Fuat Okumus ◽  
Aydin Turgut ◽  
Erol Sancaktar
Keyword(s):  
Thermal Expansion ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Thermal Stresses ◽  
Coating Layer ◽  
Coefficient Of Thermal Expansion ◽  
Aluminum Matrix ◽  
Matrix Composites ◽  
Cylinder Model ◽  
Matrix Layer

Abstract In this study, the use of coating layers is investigated to reduce thermal stresses in the metal matrix composites which have a mismatch in coefficients of thermal expansions in fiber and matrix components. The thermoelastic solutions are obtained based on a three-cylinder model. It is shown that the effectiveness of the layer can be defined by the product of its coefficient of thermal expansion and thickness. Consequently, a compensating layer with a sufficiently high coefficient of thermal expansion can reduce the thermal stresses in the metal matrix. The study is based on a concentric three cylinder model isolating individual steel fibers surrounded with a coating layer and an aluminum matrix layer. Only monotonic cooling is studied.

Diamond/Al metal matrix composites formed by the pressureless metal infiltration process

1993 ◽  
Vol 8 (5) ◽  
pp. 1169-1173 ◽  
Author(s):  
William B. Johnson ◽  
B. Sonuparlak
Keyword(s):  
Thermal Conductivity ◽  
Thermal Expansion ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Coefficient Of Thermal Expansion ◽  
Matrix Composites ◽  
Infiltration Process ◽  
Point Bend ◽  
Aluminum Metal Matrix Composites ◽  
Metal Infiltration

Diamond particles are unique fillers for metal matrix composites because of their extremely high modulus, high thermal conductivity, and low coefficient of thermal expansion. Diamond reinforced aluminum metal matrix composites were prepared using a pressureless metal infiltration process. The diamond particulates are coated with SiC prior to infiltration to prevent the formation of Al4C3, which is a product of the reaction between aluminum and diamond. The measured thermal conductivity of these initial diamond/Al metal matrix composites is as high as 259 W/m-K. The effects of coating thickness on the physical properties of the diamond/Al metal matrix composite, including Young's modulus, 4-point bend strength, coefficient of thermal expansion, and thermal conductivity, are presented.

Sign in / Sign up

Export Citation Format

Share Document