Abstract

X ray diffraction to crystal is the first and most convenient and important method for man to research the
material microstructure. X ray diffraction has the character of no damaging sample, no pollution, and high
measuring accuracy. Material phase structure, the measurements, direction and distribution of crystalline grain,
stress and other information can be taken by the method. By means of X ray diffraction quantitative phase
analysis, the test and research of potsherd in New Stone Age in Yeshi Mountain of Ludian County, Zhaotong City,
Yunnan Province primarily ascertained its main composition, started and strengthened the research of unearthed
cultural relics with science and technology in Zhaotong city, made the research of unearthed cultural relics turn
to malty-subject study.

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