THERMAL EXPANSION SUPPRESSING AGENT, ZERO THERMAL EXPANSION MATERIAL, NEGATIVE THERMAL EXPANSION MATERIAL, METHOD FOR SUPPRESSING THERMAL EXPANSION, AND METHOD FOR PRODUCING THERMAL EXPANSION SUPPRESSING AGENT

摘要

Provided is a thermal expansion inhibitor which has a much broaderapplication range and which can be used with ease.Used is a thermal expansion inhibitor comprising a manganese nitridecrystal.