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Volume 7 Issue 3
Sep.  2005
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ZHANG Gang-sheng, JIA Tai-xuan, DING Shi-lei, HAO Yu-lan. Differential Scanning Calorimetry Analysis of Nacreous Layer from Bivalve Shells of Pinctada Martensii[J]. Journal of Gems & Gemmology, 2005, 7(3): 20-22.
Citation: ZHANG Gang-sheng, JIA Tai-xuan, DING Shi-lei, HAO Yu-lan. Differential Scanning Calorimetry Analysis of Nacreous Layer from Bivalve Shells of Pinctada Martensii[J]. Journal of Gems & Gemmology, 2005, 7(3): 20-22.
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Differential Scanning Calorimetry Analysis of Nacreous Layer from Bivalve Shells of Pinctada Martensii

  • College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China

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  • Received Date: August 11, 2005
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    • Abstract
  • The thermal features of nacre aragonite from bivalve shells of Pinctada martensii are analyzed by using differential scanning calorimetry. It is observed that the thermal transformation of nacre aragonite to calcite is exothermal at about 445℃, whereas the transformation of synthetic aragonite is endothermal at about 498℃. The unusual exothermal transformation of nacre aragonite to calcite is perhaps resulted from the stored excess enthalpy in nanometer-size aragonite of nacre.
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    • References (7)
  • [1]
    TakahashiK,Yamamoto H,Onoda A,et al.H ighly oriented a-ragon ite nanocrystal-b iopolym er composites in an aragon ite brickof the nacreous layer ofPinctada fucata[J].Chem ical Commu-n ications,2004,21(8):996-997.
    [2]
    Rousseaua M,Lopez E,Stempfle P,et al.Mu ltiscale structureof sheet nacre[J].B iomaterials,2005,26(31):6254-6262.
    [3]
    Isobe T,Senna M.D ifferences in thermal and mechanochem icalpolymorph ism[J].Journal of the Chem ical Society FaradayTransactionsⅠ,1988,84(4):1199-1209.
    [4]
    Dong S,Zou G,Yan H.Thermal characteristics of ultrafine-grained alum inum produced by wire electrical explosion[J].Scripta Materialia,2001,44(1):17-23.
    [5]
    Anderson F A,B recěvic L.Infrared spectra of amorphous andcrystalline calcium carbonate[J].Acta Chimica Scand inavica,1991,(45):1018-1024.
    [6]
    Coutrin N P,N'Guyen P,Pelmard R,et al.W ater desorptionand aragon ite-calcite phase transition in scleractin ian corals skel-etions[J].Thermoch im ica Acta,1995,(265):135-140.
    [7]
    WolfG,Günther C.Thermophysical investigations of the polymor-phous phases of calcium carbonate[J].Journal ofThermalAnaly-sis and Calorimetry,2001,65(3):687-698.
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