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Effects of dry grinding on the structure and granularity of calcite and its polymorphic transformation into aragonite
Li, TT (Li, Tiantian)[ 1 ]; Sui, FF (Sui, Fengfeng)[ 1 ]; Li, FC (Li, Fuchun)[ 1 ]; Cai, YF (Cai, Yuanfeng)[ 2 ]; Jin, ZD (Jin, Zhangdong)[ 3 ]
2014-03-01
Source PublicationPowder Technology
Volume254Pages:338-343
Subtype期刊论文
Abstract

The structure and granularity of calcite were measured during dry grinding in a ball mill by X-ray diffraction, Fourier transform infrared spectroscopy and laser diffraction, and its morphology was observed by a scanning electron microscope. During the early stage of grinding (0-10. min), the median particle size and X-ray diffraction intensity of the calcite decreased, while the full width at half maximum increased as grinding progressed. During the middle grinding stage (20-300. min), the grain size and crystalline degree of ultrafine calcite particles no longer changed with time; this was attributed to aggregation, which hindered the breakage of particles. During the final grinding stage (360-720. min), a polymorphic transformation of calcite into aragonite took place.

KeywordCalcite Aragonite Dry Grinding Structure Granularity Phase Transformation
DOI10.1016/j.powtec.2014.01.043
Indexed BySCI ; EI
Language英语
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Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9745
Collection加速器质谱中心
Corresponding AuthorLi, FC (Li, Fuchun)[ 1 ]
Affiliation1.College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China;
2.State Key Laboratory of Mineral Deposit Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China;
3.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China
Recommended Citation
GB/T 7714
Li, TT ,Sui, FF ,Li, FC ,et al. Effects of dry grinding on the structure and granularity of calcite and its polymorphic transformation into aragonite[J]. Powder Technology,2014,254:338-343.
APA Li, TT ,Sui, FF ,Li, FC ,Cai, YF ,&Jin, ZD .(2014).Effects of dry grinding on the structure and granularity of calcite and its polymorphic transformation into aragonite.Powder Technology,254,338-343.
MLA Li, TT ,et al."Effects of dry grinding on the structure and granularity of calcite and its polymorphic transformation into aragonite".Powder Technology 254(2014):338-343.
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