会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 16. 发明授权
    • Zero thermal expansion material
    • 零热膨胀材料
    • US06812178B2
    • 2004-11-02
    • US10189773
    • 2002-07-08
    • Tomoko SuzukiAtsushi OmoteJun Kuwata
    • Tomoko SuzukiAtsushi OmoteJun Kuwata
    • C04B35495
    • C04B35/053C01G39/00C01G39/006C01G41/006C01G49/00C01P2002/72C01P2006/10C01P2006/32C04B35/488C04B35/495H01L23/15H01L2924/0002H05K1/0306H01L2924/00
    • Using as a negative thermal expansion material a double oxide containing at least partly a compound represented by the chemical formula: RQ2O8 (wherein R is Zr, Hf or a tetravalent metallic element represented by a mixture system of these, and Q is a hexavalent metallic element selected from W and Mo), and using as a positive thermal expansion material a material containing at least partly a compound represented by the chemical formula: MQX4 (wherein M is Mg, Ca, Sr, Ba, Ra or a divalent metallic element represented by a mixture system of any of these, Q is a hexavalent metallic element selected from W and Mo, and X is an element selected from O and S), these are mixed preferably in a weight ratio of 1:1 and are synthesized to obtain a material whose coefficient of thermal expansion is substantially zero over a wide temperature range, i.e., a zero thermal expansion material. Using this zero thermal expansion material, high-precision and high-performance practical component parts can be obtained.
    • 使用至少部分由化学式RQ2O8表示的化合物(其中R是Zr,Hf或由它们的混合体系表示的四价金属元素)的双氧化物作为负热膨胀材料,Q是六价金属元素 选自W和Mo),并且使用至少部分由化学式MQX4表示的化合物(其中M为Mg,Ca,Sr,Ba,Ra或由下式表示的二价金属元素作为正热膨胀材料) 任何这些的混合体系,Q是选自W和Mo的六价金属元素,X是选自O和S的元素),优选以1:1的重量比混合,得到 热膨胀系数在宽温度范围内基本为零的材料,即零热膨胀材料。 使用这种零热膨胀材料,可以获得高精度和高性能的实用部件。