2009Microstructure and Thermoelectric Properties of Bi- and Cu-Substituted Ca3Co4O9 Oxides取代
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Ｊ．Ｍａｔｅｒ．Ｓｃｉ．Ｔｅｃｈｎ０１．，Ｖ０１．２５Ｎｏ．１，２００９
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ＣＣＯｓａｍｐｌｅｈａｓｌｉｔｔｌｅｅｆｆｅｃｔｏｎｔｈｅ
ｇｒａｉｎｇｒｏｗｔｈａｎｄｄｉｓｔｒｉｂｕｔｉｏｎ．ＦｏｒＣＢＣＯｓａｍｐｌｅ，ｈｏｗｅｖｅｒ．ｉｔａｐｐｅａｒｓｃｌｅａｒｌｙｔｏｂｅｔｈａｔｔｈｅｐｌａｔｅｌｅｔ—ｓｈａｐｅｄｇｒａｉｎｓａｌｉｇｎｈｏｍｏｇｅｎｅｏｕｓｌｙａｌｏｎｇｔｈｅｔｈｉｃｋ－ｎｅｓｓｄｉｒｅｃｔｉｏｎ．ｗｈｉｃｈｉｓｃｏｎｓｉｓｔｅｎｔｗｉｔｈＸＲＤｉｎｖｅｓ－
ｔｉｇａｔｉｏｎ．Ｍｏｒｅｏｖｅｒ，ｔｈｅｇｒａｉｎｓｉｚｅｉｎＣＢＣＯｓａｍｐｌｅ
ｉｓｍｕｃｈｌａｒｇｅｒｔｈａｎｔｈａｔｉｎＣＣＯｓａｍｐｌｅ．ｉｎｄｉｃａｔｉｎｇｔｈａ土Ｂｉｓｕｂｓｔｉｔｕｔｉｏｎｐｒｏｍｏｔｅｓｔｈｅｇｒｏｗｔｈｏｆｇｒａｉｎｓ．ＡｌｔｈｏｕｇｈｔｈｅｇｒｏｗｔｈｍｅｃｈａｎｉｓｍｏｆｔｅｘｔｕｒｅｄＣＢＣＯｓａｍｐｌｅｉｓｎｏｔｃｌｅａｒｎｏｗ．ｔｈｅｃｏｒｒｅｌａｔｉｏｎｂｅｔｗｅｅｎａｌｉｇｎ—
ｍｅｒｉｔｏｆｇｒａｉａｓａｎｄｍｏｌｄｉｎｇ－ｐｒｅｓｓｕｒｅｄｉｒｅｃｔｉｏｎｓｈｏｗｓ
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ｇｒｏｗｔｈ．Ｒｅｃｅｎｔｌｙ，Ｃｈｅｎｇｅｔａ１．【１９，２０］ｒｅｐｏｒｔｅｄ
ｔｈａｔｈｉｇｈｌｙｔｅｘｔｕｒｅｄＮａＣ０２０４ｐｏｌｙｃｒｙｓｔａｌｌｉｎｅｓａｍ－ｐｉｅｗａｓｆａｂｒｉｃａｔｅｄｂｙｔｈｅｃｏｌｄｈｉｇｈ．．ｐｒｅｓｓｕｒｅｃｏｍｐａｃｔ．．ｉｎｇ（２ＧＰａ）ｆｏｌｌｏｗｅｄｂｙｔｈｅｓｏｌｉｄ—ｓｔａｔｅｒｅａｃｔｉｏｎ．Ｄｕｅ
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ｔｈｅｌａｙｅｒｅｄｓｔｒｕｃｔｕｒｅｏｆＮａＣ０２０４，ｔｈｅｇｒａｉｎｓａｒｅａｌｉｇｎｅｄａｌｏｎｇｔｈｅｐｒｅｓｓｉｎｇｄｉｒｅｃｔｉｏｎａｆｔｅｒｃｏｍｐａｃｔ—
ｉｎｇｕｎｄｅｒａｈｉｇｈｐｒｅｓｓｕｒｅ．Ｄｕｅｔｏｔｈｅｓｉｍｉｌａｒｓｔｒｕｃ－ｔｕｒｅｂｅｔｗｅｅｎＣＢＣＯａｎｄＮａＣ０２０４，ｗｅｔｈｉｎｋｔｈａｔｔｈｅｍｏｌｄｉｎｇｐｒｅｓｓｕｒｅｕｓｅｄｈｅｒｅｍａｙｈａｖｅｔｈｅｓｉｍｉｌａｒｅｆｆｅｃｔｏｎＣＢＣＯｓａｍｐｌｅ．Ｍｏｒｅｏｖｅｒ，ｎｏｔｅｘｔｕｒｅｄｓｔｒｕｃｔｕｒｅ
ｆｏｒｍｅｄｉｎＢｉ—ｆｒｅｅｓａｍｐｌｅｓｉｎｄｉｃａｔｅｓｔｈａｔｔｈｅ
ｐｒｅｓｅｎｃｅ
ｏｆＢｉｅｌｅｍｅｎｔｐｌａｙｓａｎｏｔｈｅｒｖｉｔａｌｒｏｌｅｉｎｔｈｅｔｅｘｔｕｒｅｇｒｏｗｔｈｏｆＣＢＣＯｓａｍｐｌｅ．ＴｈｅｐｒｅｓｅｎｃｅｏｆＢｉｅｌｅｍｅｎｔｍａｙｂｅｈｅｌｐｆｕｌｔｏｐｒｏｍｏｔｅｅｆｆｉｃｉｅｎｔｓｔａｃｋｉｎｇａｎｄｓｌｉｄ—ｉｎｇｏｆｔｈｅｐｌａｔｅ—ｌｉｋｅｇｒａｉｎｓｄｕｒｉｎｇｔｈｅｈｉｇｈｔｅｍｐｅｒ－ａｔｕｒｅｓｉｎｔｅｒｉｎｇ．ＳｉｍｉｌａｒｒｅｓｕｌｔｈａｓｂｅｅｎｒｅｐｏｒｔｅｄｆｏｒＢｉ２．５Ｃａ２．５Ｃ０２０ｚｃｏｍｐｏｕｎｄ［２１Ｊ．ＦｏｒＣＢＣＣＯｓａｍｐｌｅ，ｔｈｅｇｒａｉｎｄｉｓｔｒｉｂｕｔｉｏｎｂｅｃｏｍｅｓｍｕｃｈｒａｎｄｏｍｃｏｍ－ｐａｒｅｄｗｉｔｈＣＢＣＯｓａｍｐｌｅ，ｗｈｉｃｈｌｅａｄｓｔｏｔｈｅｄｒｏｐｏｆＬｏｔｇｅｒｉｎｇｆａｃｔｏｒ．Ｍｏｒｅｏｖｅｒ．ｉｔｎｅｅｄｓｎｏｔｅｔｈａｔｅ｝ｆｅｃｔｏｆｓｕｂｓｔｉｔｕｔｉｏｎｏｆＣｕｆｏｒＣｏｉｎＣＣＯｓａｍｐｌｅｏｎｔｈｅｍｉｃｒｏｓｔｒｕｃｔｕｒｅｉｓｎｅｇｌｅｃｔａｂｌｅ。ｂｕｔｓｕｂｓｔｉｔｕｔｉｏｎｏｆＣｕｆｏｒＣｏｉｎＣＢＣＯｓａｍｐｌｅｐｒｏｍｏｔｅｓｔｈｅｇｒｏｗｔｈｏｆｇｒａｉｎｓ．Ｔｈｅａｃｃｕｒａｔｅｒｅａｓｏｎｉｓｎｏｔｃｌｅａｒａｎｄｎｅｅｄｓｆｕｒｔｈｅｒｓｔｕｄｙ．
Ｆｉｇｕｒｅ３ｓｈｏｗｓ
ｔｈｅｔｅｍｐｅｒａｔｕｒｅｄｅｐｅｎｄｅｎｃｅｏｆ
ｅｌｅｃｔｒｉｃａｌｃｏｎｄｕｃｔｉｖｉｔｙｆ盯）ｆｏｒｔｈｅｆｏｕｒｓａｍｐｌｅｓ，ｍｅａ－ｓｕｒｅｄａｌｏｎｇｔｈｅｄｉｒｅｃｔｉｏｎｐｅｒｐｅｎｄｉｃｕｌａｒｔｏｐｒｅｓｓｉｎｇａｘｉｓ（ｉ．ｅ．ａｂ－ｐｌａｎｅｅｌｅｃｔｒｉｃａｌｃｏｎｄｕｃｔｉｖｉｔｙｆｏｒｔｈｅｔｅｘ－
Ｆｉｇ．２
ＳＥＭｍｉｃｒｏｇｒａｐｈｓ
ｏｆｓｅｃｔｉｏｎｓｕｒｆａｃｅｓｏｆ
ＣＣＯ，ＣＣＣＯ，ＣＢＣＯａｎｄＣＢＣＣＯ
ｓａｍｐｌｅｓ
Microstructure and Thermoelectric Properties of Bi-
and Cu-Substituted Ca3Co4O9 Oxides
作者：Haoshan Hao， Limin Zhao， Xing Hu
作者单位：Haoshan Hao(Department of Mathematical and Physical Sciences, Henan Institute of Engineering, Zhengzhou 451191, China;School of Physical Engineering and Material
Physics Laboratory, Zhengzhou University, Zhengzhou 450052, China)， Limin
Zhao(Department of Mathematical and Physical Sciences, Henan Institute of
Engineering, Zhengzhou 451191, China)， Xing Hu(School of Physical Engineering
and Material Physics Laboratory, Zhengzhou University, Zhengzhou 450052, China)刊名：
材料科学技术学报(英文版)
英文刊名：JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
年，卷(期)：2009,25(1)
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