淡水养殖珍珠中文石板片厚度的变化及其微结构分析  

Varied thickness of aragonite plates in nacreous layer and microstructure investigation

作　　者：严俊 陶金波 胡仙超[2] 邵惠萍 陈菲比 张刚生[3] 

机构地区：[1]浙江省质量检测科学研究院,浙江杭州310013 [2]浙江工业大学分析测试中心,浙江杭州310014 [3]广西大学材料科学与工程学院,广西南宁530004

出　　处：《功能材料》2013年第8期1089-1093,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(21173193);浙江省教育厅资助项目(Y201225711);浙江省质监局系统重大研究专项资助项目(20110103)

摘　　要：通过场发射扫描电镜(FE-SEM),对白、粉和紫3种颜色的淡水养殖珍珠的珍珠层微结构进行了较系统研究。结果表明,在白色、粉色及紫色3种色系的珍珠中,在沿珍珠的半径方向上,珍珠层板片的厚度是变化的,且离珍珠核心距离越远,文石板片的厚度逐渐变薄;在同一直径不同颜色的珍珠中,接近珍珠外表面区域内珍珠层文石板片的厚度及珍珠外表面"梯田式"结构形貌也存在明显的差异,且珍珠表面"梯田式"结构越致密,其近珍珠表面的文石板片的厚度就越薄。The microstructural characteristic of nacreous layer in freshwater cultured pearls was investigated by field emission-scanning electronic microscope（FE-SEM）.It is shown that the thickness of aragonite platelets varied in all specimens.Furthermore,the further from the center of pearl,the greater the thickness of aragonite platelets.In addition,it was discovered that the thickness of aragonite sheets are obviously different in nacreous layer nearly out surface region of pearls with different color,at the same time,the ＂terraced＂ structure and morphology are also different on pearls surface.The more compact ＂terraced＂ structure is,the thinner the thickness of aragonite platelets near the surface of pearl is.

关 键 词：淡水养殖珍珠 微结构 珍珠层 文石板片 

分 类 号：Q954[生物学—动物学] P574[天文地球—矿物学]