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Ｐｅｒｆｏｒｍａｎｃｅ ｏｆ Ｐｏｌｙｃａｒｂｏｓｉｌａｎｅ Ｗｉｔｈ Ｄｉｆｆｅｒｅｎｔ Ｍｏｌｅｃｕｌａｒ Ｗｅｉｇｈ ａｎｄＩｔｓ Ｅｆｆｅｃｔ ｏｎ Ｄｅｎｓｉｆｉｃａｔｉｏｎ ｏｆ Ｃ/ Ｃ－ＳｉＣ Ｃｏｍｐｏｓｉｔｅｓ
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    Abstract:

    Ｃ/ Ｃ－ＳｉＣ ｃｏｍｐｏｓｉｔｅｓ ｗｅｒｅ ｐｒｅｐａｒｅｄ ｂｙ ＣＶＤ ꎬｉｍｐｒｅｇｎａｔｉｏｎ ａｎｄ ｐｙｒｏｌｙｓｉｓ ｍｅｔｈｏｄ ｕｓｉｎｇ ｐｏｌｙｃａｒｂｏｓｉｌａｎｅ
    (ＰＣＳ) ｗｉｔｈ ｆｏｕｒ ｎｕｍｂｅｒ ａｖｅｒａｇｅ ｍｏｌｅｃｕｌａｒ ｗｅｉｇｈｔ ａｓ ｉｍｐｒｅｇｎａｎｔ.Ｔｈｅ ｍｏｌｅｃｕｌａｒ ｗｅｉｇｈｔꎬ ｓｏｆｔｅｎｉｎｇ ｐｏｉｎｔꎬ ｍｏｌｅｃｕｌａｒ ｓｔｒｕｃ￣
    ｔｕｒｅ ａｎｄ ｔｈｅｒｍｏｇｒａｖｉｍｅｔｉｃ ｐｅｒｆｏｒｍａｎｃｅ ｏｆ ＰＣＳ ｗｅｒｅ ｄｅｔｅｒｍｉｎｅｄꎬ ａｎｄ ｔｈｅ ｄｉｓｔｒｉｂｕｔｉｏｎ ｏｆ ｐｏｒｅｓ ｗｅｒｅ ａｎａｌｙｚｅｄ ｂｙ ｍｅａｎｓ ｏｆ
    ｍｅｒｃｕｒｙ ｉｎｔｒｕｓｉｏｎ ｍｅｔｈｏｄ .Ｔｈｅ ｒｅｓｕｌｔｓ ｓｈｏｗｅｄ ｔｈａｔ ｔｈｅ ｓｏｆｔｅｎｉｎｇ ｐｏｉｎｔ ａｎｄ ｒａｔｅ ｏｆ ｃｏｎｖｅｒｓｉｏｎ ａｔ ８００℃ ｏｆ ＰＣＳ ｉｎｃｒｅａｓｅｄ ｗｉｔｈ
    ｉｎｃｒｅａｓｉｎｇ ｍｏｌｅｃｕｌａｒ ｗｅｉｇｈｔ ｏｆ ＰＣＳ. Ｔｈｅ ｐｙｒｏｌｙｓｉｓ ｐｒｏｃｅｓｓ ｏｆ ＰＣＳ ｗｉｔｈ ｆｏｕｒ ｍｏｌｅｃｕｌａｒ ｗｅｉｇｈｔ ｇｒａｄｅ ｗｅｒｅ ｉｄｅｎｔｉｃａｌꎬ ａｎｄ
    ｂｒａｎｃｈ ｄｅｇｒｅｅ ｄｉｄ ｎｏｔ ｈａｖｅ ｓｉｇｎｉｆｉｃａｎｔ ｄｉｆｆｅｒｅｎｃｅ. Ｔｈｅ ｉｎｔｅｇｒａｌ ｄｅｎｓｉｆｉｃａｔｉｏｎ ｅｆｆｉｃｉｅｎｃｙ ｏｆ ＰＣＳ ｗｉｔｈ ｍｏｌｅｃｕｌａｒ ｗｅｉｇｈｔ １ １７８
    ａｎｄ １ ３３３ ｗａｓ ｈｉｇｈｅｒ ｔｈａｎ ｔｈａｔ ｏｆ ＰＣＳ ｗｉｔｈ ｍｏｌｅｃｕｌａｒ ｗｅｉｇｈｔ １ ５５０. Ｔｈｅ ｃｕｍｕｌａｔｉｖｅ ｐｏｒｅ ｃｏｎｔｅｎｔ ｏｆ ｓａｍｐｌｅ ｄｅｎｓｉｆｉｅｄ ｂｙ ＰＣＳ
    ｗｉｔｈ ｍｏｌｅｃｕｌａｒ ｗｅｉｇｈｔ １ １７８ ｗａｓ ｍａｘｉｍｕｍ ａｆｔｅｒ ｓｅｖｅｎ ｄｅｎｓｉｆｉｃａｔｉｏｎ ｃｙｃｌｅｓꎬ ａｎｄ ｔｈａｔ ｏｆ ｓａｍｐｌｅ ｄｅｎｓｉｆｉｅｄ ｂｙ ＰＣＳ ｗｉｔｈ ｍｏｌｅｃ￣
    ｕｌａｒ ｗｅｉｇｈｔ １ ５５０ ｗａｓ ｍｉｎｉｍｕｍ.Ｗｈｅｎ ＰＣＳ ｗｉｔｈ ｍｏｌｅｃｕｌａｒ ｗｅｉｇｈｔ １ １７８ ａｎｄ １ ３３３ ｗａｓ ｕｓｅｄ ｉｎ ｐｒｅｖｉｏｕｓ ｆｉｖｅ￣ｃｙｃｌｅｓ ａｎｄ ｍｏ￣
    ｌｅｃｕｌａｒ ｗｅｉｇｈｔ １ ５５０ ｗａｓ ｕｓｅｄ ｉｎ ｏｔｈｅｒ ｃｙｃｌｅｓꎬ ｔｈｅ ｍａｔｅｒｉａｌ ｃｏｕｌｄ ｂｅ ｄｅｎｓｉｆｉｅｄ ｍｏｒｅ ｅｆｆｉｃｉｅｎｔｌｙ.

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