摘要:
To attain a method of producing a lithium phosphate sintered body and a sputtering target capable of providing a high-density bulk body with no macro-size internal defect, the present invention provides a method of producing a lithium phosphate sintered body, including the steps of: calcining raw material powder of Li3PO4 at a temperature set to be 650° C. or more and less than 850° C.; pulverizing and sieving the calcined raw material powder; and sintering the sieved raw material powder to a predetermined shape. By setting a calcining temperature of the raw material powder to be 650° C. or more and less than 850° C., moisture absorbed into the raw material powder is effectively removed and generation of macro-size internal defects in the resultant bulk (sintered) body is suppressed. When the calcining temperature is less than 650° C., calcining processing is insufficient, so generation of macro-size internal defects cannot be suppressed effectively. Particularly for ease in pulverizing and sieving to obtain particle sizes of 400 μm or less, the calcining temperature is preferably set to be 650° C. or more and 750° C. or less.
摘要:
Disclosed are a manufacturing method for a LiCoO2 sintered body, said manufacturing method enabling the safe manufacturing of a high density sintered body, and a sputtering target. The LiCoO2 sintered body manufacturing method includes a step in which LiCoO2 powder is filled into a mold. The pressure inside the mold is reduced, and the LiCoO2 powder is pressure sintered inside the mold at a temperature between 800° C. and 880° C. inclusive. The above method enables the safe production of a LiCoO2 sintered body having a relative density of at least 95% and an average particle diameter of 10 μm-30 μm inclusive.
摘要:
Provided is a method for stably manufacturing high-density sintered LiCoO2. Said method uses a CIP-and-sintering method, which has a forming step using cold hydrostatic pressing and a sintering step. The pressing force is at least 1000 kg/cm2, the sintering temperature is between 1050° C. and 1120° C., and the sintering time is at least two hours. This makes it possible to stably manufacture sintered LiCoO2 with a relative density of at least 90%, a resistivity of at most 3 kΩ·cm, and a mean grain diameter between 20 and 50 μm.
摘要翻译:提供一种用于稳定制造高密度烧结LiCoO2的方法。 所述方法使用CIP和烧结方法,其具有使用冷静压和烧结步骤的成形步骤。 按压力为1000kg / cm 2以上,烧结温度为1050℃〜1120℃,烧结时间为2小时以上。 这使得可以稳定地制造相对密度为至少90%,电阻率至多为3kΩ·OHgr·cm的平均晶粒直径为20至50μm的烧结LiCoO 2。