Calcite bone substitute prepared from calcium hydroxide compact using heat-treatment under carbon dioxide atmosphere

Kanji Tsuru, Akihiro Otsu, Michito Maruta, Alireza Valanezhad, Giichiro Kawachi, Akari Takeuchi, Shigeki Matsuya, Kunio Ishikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The purpose of this study is to investigate whether calcite blocks with high mechanical property could be obtained for a short period from calcium hydroxide (Ca(OH)2) compact using heat-treatment under carbon dioxide (CO2) atmosphere. The Ca(OH)2 disks compacted with different pressure was heated at different temperature ranging from 200°C to 800°C for an hour under CO2 atmosphere. From the X-ray diffractometry, Ca(OH)2 converted into calcite along with the rise of the heating temperature. Small amount of unreacted Ca(OH)2 remained in samples heated at 600°C whereas samples treated at 800°C converted to calcite with very small amount of calcium oxide. The diametral tensile strength (DTS) value increased with the rise of heating temperature up to 600°C then decreased down to 800°C. Meanwhile, the porosity decreased with the rise of heating temperature up to 600°C then slightly increased up to 800°C. From the scanning electron microscope observation, grains grew bigger along with the rise of heating temperature. Intergranular space between grains decreased from 200°C to 600°C. The highest DTS value (14 MPa±1.3) at 600°C could be the result of lesser intergranular space due to sintering.

Original languageEnglish
Title of host publicationBioceramics 23
Pages166-169
Number of pages4
DOIs
Publication statusPublished - Jan 1 2012
Event23rd Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2011 - Istanbul, Turkey
Duration: Nov 6 2011Nov 9 2011

Publication series

NameKey Engineering Materials
Volume493-494
ISSN (Print)1013-9826

Other

Other23rd Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2011
CountryTurkey
CityIstanbul
Period11/6/1111/9/11

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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    Tsuru, K., Otsu, A., Maruta, M., Valanezhad, A., Kawachi, G., Takeuchi, A., Matsuya, S., & Ishikawa, K. (2012). Calcite bone substitute prepared from calcium hydroxide compact using heat-treatment under carbon dioxide atmosphere. In Bioceramics 23 (pp. 166-169). (Key Engineering Materials; Vol. 493-494). https://doi.org/10.4028/www.scientific.net/KEM.493-494.166