About ARL Research

High Thermal Conductive Heat Resistant Composites Research & Development Unit

KEYWORDS

  • Composites
  • Heat-resistant alloys
  • Non-oxide ceramics
  • Gas turbine
  • Thermal management
  • Sintering

Development of heat-resistant alloy/nitride ceramic composites with high thermal conductivity and lightweight

Nitride ceramic particles with high thermal conductivity, low specific gravity, high heat resistance, and corrosion resistance are composited with heat-resistant alloys. This allows us to develop composite materials that combine high thermal conductivity and light weight while taking advantage of the superior properties of heat-resistant alloys. We will investigate mixing, forming, and sintering processes to fabricate and characterize heat-resistant alloy/nitride composites that are dense and have high thermal conductivity. In addition, we will examine the size of nitride particles to be added and control particle orientation in the composite by actively utilizing whiskers and plate-like particles to improve control of thermal conductivity and mechanical properties, including anisotropy. We will contribute to the realization and advancement of efficient thermal management of systems such as jet engines, gas turbines, and heat exchangers.

Research staff

  • Unit Leader・Associate Professor

    Ryota KOBAYASHI

    Ceramics, Composites

  • Associate Professor

    Satofumi MARUYAMA

    Physical engineering, Materials engineering

  • Associate Professor

    Ai MOMOZAWA

    Ceramics, Aerospace engineering, Biomaterials

Research Introduction

Research objective

Development of heat-resistant alloy/nitride composites

Features

  • Densification of mixtures of heat resistant alloys and nitrides.
  • Synthesis of nitride particles and whiskers with controlled size and morphology.

Development of texture control processes for the composites

Features

  • Examine particle size and shape of nitrides in the composites and control of the matrix/particle interface.
  • Anisotropic property control by orientation control of nitride whiskers in composites.

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