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Materials Science

D-Index
59
Citations
11200
World Ranking
7446
National Ranking
405

Overview

Kiyoshi Hirao is affiliated with the National Institute of Advanced Industrial Science and Technology in Japan. Their research spans materials science and engineering, with a focus on ceramics and composites, electrical and electronic engineering, and materials chemistry among other subfields.

The main fields of study for Hirao include:

  • Materials Science
  • Engineering

Subfields of particular interest in Hirao's work are:

  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Ceramics and Composites
  • Mechanical Engineering
  • Mechanics of Materials

Key topics covered by Hirao's research include:

  • Advanced ceramic materials synthesis
  • Semiconductor materials and devices
  • Thermal properties of materials
  • MXene and MAX Phase Materials
  • Metal and Thin Film Mechanics
  • Ferroelectric and Piezoelectric Materials
  • Silicon Carbide Semiconductor Technologies

Hirao has published extensively on advanced ceramics and related materials. Notable recent papers by Hirao and collaborators are:

  • "Improving the thermal conductivity of epoxy composites using a combustion-synthesized aggregated β-Si3N4 filler with randomly oriented grains" (2020, Scientific Reports)
  • "Effect of microstructures on dielectric breakdown strength of sintered reaction-bonded silicon nitride ceramics" (2022, Journal of the American Ceramic Society)
  • "Artificial Intelligence-based determination of fracture toughness and bending strength of silicon nitride ceramics" (2023, Journal of the American Ceramic Society)
  • "Thickness dependence of dielectric breakdown strength for silicon nitride substrate" (2021, Journal of the Ceramic Society of Japan)
  • "Effects of nitridation temperature on properties of sintered reaction-bonded silicon nitride" (2022, International Journal of Applied Ceramic Technology)

The most frequent venues for Hirao's publications include:

  • Journal of the American Ceramic Society
  • Ceramics International
  • International Journal of Applied Ceramic Technology
  • Journal of the Ceramic Society of Japan
  • Scientific Reports

Collaborative work has often involved:

  • Manabu Fukushima
  • Yuki Nakashima
  • You Zhou
  • Tatsuki Ohji
  • Norimitsu Murayama

Overall, Hirao's research contributes to the understanding and development of ceramic materials, focusing on their synthesis, structural properties, and applications in electronics and thermal management technologies.

Best Publications

  • Microstructural Design of Silicon Nitride with Improved Fracture Toughness: I, Effects of Grain Shape and Size

    Paul F. Becher;Ellen Y. Sun;Kevin P. Plucknett;Kathleen B. Alexander

  • Microstructural design of silicon nitride with improved fracture toughness: II. Effects of yttria and alumina additives

    Ellen Y. Sun;Paul F. Becher;Kevin P. Plucknett;Chun-Hway Hsueh

  • Processing Strategy for Producing Highly Anisotropic Silicon Nitride

    Kiyoshi Hirao;Masayoshi Ohashi;Manuel E. Brito;Shuzo Kanzaki

  • A Tough Silicon Nitride Ceramic with High Thermal Conductivity

    You Zhou;Hideki Hyuga;Dai Kusano;Yu-ichi Yoshizawa

  • Microstructure Control of Silicon Nitride by Seeding with Rodlike β‐Silicon Nitride Particles

    Kiyoshi Hirao;Takaaki Nagaoka;Manuel E. Brito;Shuzo Kanzaki

  • Thermal Conductivity of β‐Si3N4: II, Effect of Lattice Oxygen

    Mikito Kitayama;Kiyoshi Hirao;Akira Tsuge;Koji Watari

  • High strength B4C–TiB2 composites fabricated by reaction hot-pressing

    Suzuya Yamada;Kiyoshi Hirao;Yukihiko Yamauchi;Shuzo Kanzaki

  • Thermal Conductivity of ß-Si3N4: I, Effects of Various Microstructural Factors

    Mikito Kitayama;Kiyoshi Hirao;Motohiro Toriyama;Shuzo Kanzaki

  • MgSiN2 Addition as a Means of Increasing the Thermal Conductivity of β‐Silicon Nitride

    Hiroyuki Hayashi;Kiyoshi Hirao;Motohiro Toriyama;Shuzo Kanzaki

  • Microstructure designing of silicon nitride

    Shuzo Kanzaki;Manuel E. Brito;M.Cecilia Valecillos;Kiyoshi Hirao

  • Densification and grain growth in pulse electric current sintering of alumina

    You Zhou;Kiyoshi Hirao;Yukihiko Yamauchi;Shuzo Kanzaki

  • High Thermal Conductivity in Silicon Nitride with Anisotropie Microstructure

    Kiyoshi Hirao;Koji Watari;Manuel E. Brito;Motohiro Toriyama

  • Microstructural Characterization of Porous Silicon Carbide Membrane Support With and Without Alumina Additive

    Manabu Fukushima;You Zhou;Hiroyuki Miyazaki;Yu-ichi Yoshizawa

  • Development of high-thermal-conductivity silicon nitride ceramics

    You Zhou;Hideki Hyuga;Dai Kusano;Yu-ichi Yoshizawa

  • Thermal Conductivity of β‐Si3N4: III, Effect of Rare‐Earth (RE = La, Nd, Gd, Y, Yb, and Sc) Oxide Additives

    Mikito Kitayama;Kiyoshi Hirao;Koji Watari;Motohiro Toriyama

  • High Thermal Conductivity Silicon Nitride Ceramic

    Kiyoshi Hirao;Koji Watari;Hiroyuki Hayashi;Mikito Kitayama

  • Thermal conductivity of silicon carbide densified with rare-earth oxide additives

    You Zhou;Kiyoshi Hirao;Koji Watari;Yukihiko Yamauchi

  • Tribological behavior of ceramic materials (Si3N4, SiC and Al2O3) in aqueous medium

    D. Amutha Rani;Y. Yoshizawa;H. Hyuga;K. Hirao

  • Processing and Thermal Conductivity of Sintered Reaction-Bonded Silicon Nitride. I: Effect of Si Powder Characteristics

    Xinwen Zhu;You Zhou;Kiyoshi Hirao;Zoltán Lenčéš

  • Formation and Properties of Ln‐Si‐O‐N Glasses (Ln = Lanthanides or Y)

    Masayoshi Ohashi;Kazuo Nakamura;Kiyoshi Hirao;Shuzo Kanzaki

  • Fracture Resistance Behavior of Highly Anisotropic Silicon Nitride

    Tatsuki Ohji;Kiyoshi Hirao;Shuzo Kanzaki

  • High-Strength and High-Fracture-Toughness Ceramics in the Al2O3/LaAl11O18 Systems

    Masaki Yasuoka;Kiyoshi Hirao;Manuel E. Brito;Shuzo Kanzaki

Frequent Co-Authors

Tatsuki Ohji
Tatsuki Ohji National Institute of Advanced Industrial Science and Technology
Yoshio Sakka
Yoshio Sakka National Institute for Materials Science
Michael J. Hoffmann
Michael J. Hoffmann Karlsruhe Institute of Technology
Katsuaki Suganuma
Katsuaki Suganuma Osaka University
Woosuck Shin
Woosuck Shin National Institute of Advanced Industrial Science and Technology
Shijo Nagao
Shijo Nagao Osaka University
Seung-Boo Jung
Seung-Boo Jung Sungkyunkwan University
Setsuhisa Tanabe
Setsuhisa Tanabe Kyoto University
Zhijian Shen
Zhijian Shen Stockholm University
Naohiro Soga
Naohiro Soga Kyoto University

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