Synthesis of calcium phosphate crystals with thin nacreous structure

Chen, Song (author)

Grandfield, Kathryn (author)

Yu, Shun (author): KTH,Fiber- och polymerteknologi,Wallenberg Wood Science Center

Engqvist, Håkan (author)

Xia, Wei (author)

(creator_code:org_t)

Royal Society of Chemistry, 2016
2016
English.
In: CrystEngComm. - : Royal Society of Chemistry. - 1466-8033. ; 18:6, s. 1064-1069

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

Nacre-like structures have attracted great interest in recent years due to their outstanding toughness, stiffness and impact resistance. However, there is a challenge associated with engineering nacre-like calcium phosphate crystals. In this study, thin nacreous-like monetite sheets were synthesized in solutions guided by a surfactant. The influence of temperature, initial pH, Ca/P ratio, stirring time and the concentration of cetyltrimethylammonium bromide (CTAB) on the nacre-like structure has been studied. Findings showed that a nacre-like structure could only be formed at a high temperature (90 °C), high initial pH (11), sufficient stirring time (3 h), and under the presence of CTAB. A small-angle X-ray scattering experiment carried out at a synchrotron radiation facility showed that the distance between nanolayers was around 2.6 nm and TEM confirmed the fine sheet-like structure. The mechanism of the formation the nacre-like structure and its characterization were discussed.

By the author/editor: Chen, Song; Grandfield, Kath ...; Yu, Shun; Engqvist, Håkan; Xia, Wei

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Materials Engine ...; and Ceramics

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