Ayahisa Okawa

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Assistant Professor

Tohoku University

Japan

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About

Dr. Ayahisa Okawa is an Assistant Professor at Tohoku University in Japan. His research areas include the synthesis and characterization of inorganic pigments, thermochromic materials, and photocatalytic applications. Recent publications highlight his work on cobalt and nickel-doped pigments, as well as advancements in gas sensing technologies. Dr. Okawa's contributions to materials science reflect a commitment to understanding optical properties and phase transitions in various compounds.

Recent Grants

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希土類珪酸塩へのSiC添加による自己修復と耐水蒸気腐食性の向上に基づく、耐環境被覆としての優位性検証

Open Date: 2021-04-01

Close Date: 2022-03-01

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Osaka University

JAPAN

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Ayahisa Okawa

Research Interests

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Contact this professor

About

Recent Grants

Articles (20)

Synthesis and optical properties of blue inorganic pigments with tetrahedrally coordinated Co2+/Ni2+ in Li2ZnSiO4

Optical characteristics and application of cobalt/nickel doped SrZn2(PO4)2 blue-violet and violet inorganic pigment powders

Insights into the phase transition behavior of thermochromic VO2 (M1) powders doped with Tungsten

Optical properties and application of blue and purple inorganic pigment powders based on cobalt/nickel doped Sr2MgSi2O7

Phosphorus Doping Coupled with Gradient Film Strategy to Achieve Thermochromic Performance Enhancement of VO2

Fabrication of Cs0.33WO3-g-C3N4-rGO nanocomposite for near-infrared shielding and photocatalysis applications

W/Mo/Cr Doping Modulates the Negative–Positive Inversion Gas Sensing Behavior of VO2(M1)

Optical properties of cobalt/nickel doped SrAl12O19 blue inorganic pigments and their application in 3YSZ ceramics

Novel Selectivity: Target of Gas Sensing Defined by Behavior

Synthesis of novel colored substrate-free pearlescent pigments of vanadium phosphates with large-size layered platelet morphology

Liquid-phase oxidation synthesis of WS2–WO3 particles with enhanced gas sensing performance

Gas sensing performance of Nb2CTx synthesized by hydrothermal assisted in-situ HF generation etching method

Self-healing ability, strength enhancement, and high-temperature oxidation behavior of silicon carbide-dispersed ytterbium disilicate composite for environmental barrier coatings under isothermal heat treatment

Self-healing ability, strength enhancement, and high-temperature oxidation behavior of silicon carbide-dispersed ytterbium disilicate composite for environmental barrier coatings under isothermal heat treatment

Autonomous crack healing ability of SiC dispersed Yb2Si2O7 by oxidations in air and water vapor

Titanium Nitride and Yttrium Titanate Nanocomposites, Endowed with Renewable Self‐Healing Ability

Improving self-healing ability and flexural strength of ytterbium silicate-based nanocomposites with silicon carbide nanoparticulates and whiskers

Titanium Nitride and Yttrium Titanate Nanocomposites, Endowed with Renewable Self-Healing Ability

Autonomous crack healing ability of SiC dispersed Yb(2)Si2O7 by oxidations in air and water vapor

Improving self-healing ability and flexural strength of ytterbium silicate-based nanocomposites with silicon carbide nanoparticulates and whiskers

Collaborators (6)

Tadachika Nakayama

Shu Yin

Son Nguyen

Tohru Sekino

Hideki HASHIMOTO

Tomoyo Goto

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