Fabrication of an AlN particulate aluminium matrix composite by a melt stirring method

Journal Article · Thu Jun 15 04:00:00 EDT 1995 · Scripta Metallurgica et Materialia

DOI:https://doi.org/10.1016/0956-716X(95)00083-8· OSTI ID:92961

Taheri-Nassaj, E; Kobashi, M; Choh, T ^[1]

---

1. Nagoya Univ. (Japan). Dept. of Materials Processing Engineering

The physical and mechanical properties of metal matrix composites (MMCs) are extensively controlled by the structure and properties of the reinforcement/metal interface. From a metallurgical point of view, the ideal interfacial layer in a composite is expected to have some conditions: (a) the presence of intimate contact between the reinforcement and the matrix through satisfactory wetting of the reinforcement by the matrix to ensure enough adhesion and (b) the low rate of a chemical reaction at the interface to prevent degradation of the reinforcement. There are, however, various methods which can be used to improve the wetting characteristics of MMCs. The addition of alloying elements to the metal matrix has been shown to improve the metal/ceramic wettability by either reducing the metal/ceramic interfacial energy or reacting with the ceramic reinforcement to form interfacial reaction products. Although the thermal conductivity of AlN particles is less than that of SiC particles, it is likely that AlN is chemically more stable than SiC. Thus, the aim of the present paper is mainly to study the incorporation behavior of AlN particulates into aluminium melt.

• OSTI ID: 92961
• Journal Information: Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 12 Vol. 32; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ALUMINIUM NITRIDES
ALUMINIUM OXIDES
ARGON
COMPOSITE MATERIALS
FABRICATION
LIQUID METALS
MAGNESIUM OXIDES
NITROGEN
PARTICULATES
WETTABILITY