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Mn-Zr-Si三元系600℃等溫截面
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1.廣西民族大學(xué)/廣西大學(xué);2.廣西大學(xué);3.廣西民族大學(xué)

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國(guó)家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）


Isothermal Section of the Mn-Zr-Si Ternary System at 600℃
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1.Guangxi University for Nationalities/Guangxi University;2.Guangxi University;3.Guangxi University for Nationalities;4.Guangxi University of Nationalities

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    摘要:

    利用X射線衍射、掃描電子顯微鏡及能譜分析等手段建立了Mn-Zr-Si三元合金體系600℃等溫截面。研究發(fā)現(xiàn)，Mn-Zr-Si三元合金系在600℃下存在一個(gè)成分為Mn4Si7Zr4的新物相，其結(jié)構(gòu)與Fe4Si7Zr4結(jié)構(gòu)相同，點(diǎn)陣常數(shù)為a = 1.3027 nm，c = 0.515 nm。研究還發(fā)現(xiàn)高溫相Zr5Si3在600℃是穩(wěn)定的，未觀察到Zr3Si的存在。此外，本文的工作同時(shí)還確認(rèn)了三元化合物MnSi2Zr和MnSiZr在600℃下是穩(wěn)定存在，未發(fā)現(xiàn)前人提到三元化合物Mn4Si6Zr3。

    Abstract:

    The isothermal section of the Mn-Zr-Si ternary system at 600℃ was investigated by using X-ray diffraction, scanning electron microscope and energy dispersive analysis. A new termary compound was discovered. This compound was found to be isostrutural to Fe4Si7Zr4 with tetralgonal structure and cell parameters of a = 1.3027 nm, c = 0.515 nm. A quite different conclusion was obstained for the Zr-Si binary system comparing to results in the literatures. No the evidence was found to support the existence of Zr3Si at 600℃, which was taken as a stable phase in the Zr-Si system. Moreover, XRD and SEM/EDS revealed that Zr5Si3 was a stable phase at 600℃. In addition, MnSi2Zr and MnSiZr were confirmed at 600℃ while Mn4Si6Zr3 is not found in the present work.

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零妙然,歐陽(yáng)義芳,蒙潔麗,梁建烈. Mn-Zr-Si三元系600℃等溫截面[J].稀有金屬材料與工程,2016,45(1):112~116.[Ling Miaoran, Ouyang Yifang, Meng Jieli, liang jianlie. Isothermal Section of the Mn-Zr-Si Ternary System at 600℃[J]. Rare Metal Materials and Engineering,2016,45(1):112~116.]
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  • 收稿日期:2014-02-19
  • 最后修改日期:2014-03-31
  • 錄用日期:2014-04-08
  • 在線發(fā)布日期: 2019-01-04
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