地质调查与研究
地質調查與研究
지질조사여연구
GEOLOGICAL SURVEY AND RESEARCH
2014年
1期
77-80
,共4页
X射线衍射%萤石衍射图谱%指标化%晶胞参数
X射線衍射%螢石衍射圖譜%指標化%晶胞參數
X사선연사%형석연사도보%지표화%정포삼수
X-ray diffraction%fluorite diffraction pattern%index%cell parameters
利用X射线粉晶衍射仪对纯萤石矿物进行全谱扫描，在确定萤石矿物衍射5强峰基础上，准确标出萤石5强峰相应的d值，按2θ角值由大到小的顺序排成纵行，计算出不同d值的1/d2值，用1/d2值最小一条线的值去除其余各条线的1/d2值，得出的数值D仍依次排列；据D值小数部分是0.36或0.68数值，推断实验所测萤石低角度的第一条线是{111}网面衍射产生的，其相应的h2+k2+l2值为3，以第一条线h2+k2+l2值3分别乘以其余各条线的D值，得出的数据h2+k2+l2值仍依次排列，分别为8.04，11.04，16.08和19.08，由于测量的误差，舍去小数点后数据，保留整数位，即可得到相应的h2+k2+l2值3、8、11、16和19，据h2+k2+l2值查出相应网面指数为{111}、{220}、{311}、{400}和{331}，根据晶胞参数公式：a=d(hkl)(h2+k2+l2)1/2计算出萤石晶胞参数值为0.546 nm。
利用X射線粉晶衍射儀對純螢石礦物進行全譜掃描，在確定螢石礦物衍射5彊峰基礎上，準確標齣螢石5彊峰相應的d值，按2θ角值由大到小的順序排成縱行，計算齣不同d值的1/d2值，用1/d2值最小一條線的值去除其餘各條線的1/d2值，得齣的數值D仍依次排列；據D值小數部分是0.36或0.68數值，推斷實驗所測螢石低角度的第一條線是{111}網麵衍射產生的，其相應的h2+k2+l2值為3，以第一條線h2+k2+l2值3分彆乘以其餘各條線的D值，得齣的數據h2+k2+l2值仍依次排列，分彆為8.04，11.04，16.08和19.08，由于測量的誤差，捨去小數點後數據，保留整數位，即可得到相應的h2+k2+l2值3、8、11、16和19，據h2+k2+l2值查齣相應網麵指數為{111}、{220}、{311}、{400}和{331}，根據晶胞參數公式：a=d(hkl)(h2+k2+l2)1/2計算齣螢石晶胞參數值為0.546 nm。
이용X사선분정연사의대순형석광물진행전보소묘，재학정형석광물연사5강봉기출상，준학표출형석5강봉상응적d치，안2θ각치유대도소적순서배성종행，계산출불동d치적1/d2치，용1/d2치최소일조선적치거제기여각조선적1/d2치，득출적수치D잉의차배렬；거D치소수부분시0.36혹0.68수치，추단실험소측형석저각도적제일조선시{111}망면연사산생적，기상응적h2+k2+l2치위3，이제일조선h2+k2+l2치3분별승이기여각조선적D치，득출적수거h2+k2+l2치잉의차배렬，분별위8.04，11.04，16.08화19.08，유우측량적오차，사거소수점후수거，보류정수위，즉가득도상응적h2+k2+l2치3、8、11、16화19，거h2+k2+l2치사출상응망면지수위{111}、{220}、{311}、{400}화{331}，근거정포삼수공식：a=d(hkl)(h2+k2+l2)1/2계산출형석정포삼수치위0.546 nm。
The pure fluorites were full spectrum scanned by the X-ray powder diffractometer. On the basis of top 5 strong diffraction peaks of the fluorites, the values of the peaks can be accurately marked. The values of the an-gle 2θwere arranged in descending longitudinal, which could calculate the 1/d2 values of different d values. The value of the minimum line of the 1/d2 value divided by the 1/d2 values of the remaining lines, with the result val-ue D still lining;According to the decimal part of D value is 0.36 or 0.68, it’s deduced that the first line of the flu-orite low angle is surface{111}diffraction, and its corresponding h2+k2+l2 value is 3. The value 3 of the first line h2+k2+l2 multiplied by D values of the remaining lines respectively. The results of h2+k2+l2 values were still lined, such as 8.04, 11.04, 16.08 and 19.08. Due to the error of measuring, abandoning the data after the deci-mal point, keeping integer bits, it can be obtained the corresponding h2+k2+l2 values, as 3、8、11、16 and 19. According to h2+k2+l2 values, it could be obtained the corresponding net surface index, as{111},{220},{311},{400}and{331}. According to the crystal cell parameters formula:a=d (hkl) (h2+k2+l2) 1/2, it could be calculat-ed the value of crystal cell parameters, 0.546 nm.
