Strained calcite crystals from amorphous calcium carbonate containing an organic molecule

So Sugiyama, Mihiro Takasaki, Yuya Oaki, Hiroaki Imai

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Amorphous calcium carbonate (ACC) is regarded as an important precursor of biogenic crystal phases having specific shapes and mechanical properties. In the present work, calcite that was produced from ACC nanoparticles containing aspartic acid was characterized by Raman scattering spectroscopy and nanoindentation techniques. The tensile strain of the calcite lattice that was estimated from the vibrational spectroscopy varied with the organic content and the mild calcination condition of ACC nanoparticles. Calcite was found to be hardened by the presence of residual organic components inside the crystal lattice. On the other hand, the modulus of calcite decreased as the content of external organic components increased. Here, the mechanical properties of the calcite framework are successfully tuned by the crystallization of the specific amorphous phases containing organic molecules. The mechanical modulation of calcite can be associated with lattice expansion by using vibrational spectroscopy. This journal is

本文言語English
ページ(範囲)7054-7058
ページ数5
ジャーナルCrystEngComm
22
42
DOI
出版ステータスPublished - 2020 11 14

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

フィンガープリント

「Strained calcite crystals from amorphous calcium carbonate containing an organic molecule」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル