物理学报
物理學報
물이학보
2013年
9期
436-440
,共5页
张季%王迪%张德明%张庆礼*%万松明%孙敦陆%殷绍唐
張季%王迪%張德明%張慶禮*%萬鬆明%孫敦陸%慇紹唐
장계%왕적%장덕명%장경례*%만송명%손돈륙%은소당
Ba3(PO4)2和Sr3(PO4)2%高温拉曼光谱%振动模式%高温结构
Ba3(PO4)2和Sr3(PO4)2%高溫拉曼光譜%振動模式%高溫結構
Ba3(PO4)2화Sr3(PO4)2%고온랍만광보%진동모식%고온결구
Ba3(PO4)2 and Sr3(PO4)2%high temperature Raman spectrum%vibration mode%high temperature struc-ture
测量了碱土金属正磷酸盐Ba3(PO4)2和Sr3(PO4)2常温及高温拉曼光谱,对拉曼振动模式进行指认,并分析了晶体拉曼振动光谱及晶体结构在高温下的变化.在温度升高的过程中,拉曼振动频率向低频移动且振动峰宽度展宽,晶体中的P-O平均键长随温度升高而变长,但O-P-O的键角并未发生变化.晶体在900?C以下无结构相变发生.
測量瞭堿土金屬正燐痠鹽Ba3(PO4)2和Sr3(PO4)2常溫及高溫拉曼光譜,對拉曼振動模式進行指認,併分析瞭晶體拉曼振動光譜及晶體結構在高溫下的變化.在溫度升高的過程中,拉曼振動頻率嚮低頻移動且振動峰寬度展寬,晶體中的P-O平均鍵長隨溫度升高而變長,但O-P-O的鍵角併未髮生變化.晶體在900?C以下無結構相變髮生.
측량료감토금속정린산염Ba3(PO4)2화Sr3(PO4)2상온급고온랍만광보,대랍만진동모식진행지인,병분석료정체랍만진동광보급정체결구재고온하적변화.재온도승고적과정중,랍만진동빈솔향저빈이동차진동봉관도전관,정체중적P-O평균건장수온도승고이변장,단O-P-O적건각병미발생변화.정체재900?C이하무결구상변발생.
Temperature-dependent Raman spectroscopic study on orthophosphates Ba3(PO4)2 and Sr3(PO4)2 were carried out up to 900 ?C. The change of Raman lines and crystal structure has been investigated at high-temperatures. It is found that all the Raman lines exhibit a decrease in frequency shifts and the width of the Raman lines increases with the increase in temperature. The P-O bond lengths in the crystal increase in high-temperature, but the O-P-O bond angles have less change. No phase changes have been observed under 900 ?C.
