Effect of a polymer addition on the crystallite size and sinterability of hydroxyapatite prepared with CaO powder and phosphoric acid
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Highly sinterable hydroxyapatite (HAp) ceramics were fabricated by the addition of polyethylene glycol (PEG) to a slurry consisting of CaO powder and phosphoric acid. The morphology of the synthesized powder was changed to a more porous structure and the particles showed a finer crystallite size by the addition of PEG in the solution process. The synthesized HAp powder employing PEG showed a higher surface area of 34.0 m2/g and a denser sintered microstructure in comparison with that prepared without PEG. The porous and soft agglomerated powders prepared by the application of the PEG polymer were easily dispersed to nano-sized powders of about 80~100 nm by an ultrasonic process and the powder compacts were well densified at 1300 οC for 1 h showing a fine grain size of 1.2 μm.
Abstract
Highly sinterable hydroxyapatite (HAp) ceramics were fabricated by the addition of polyethylene glycol (PEG) to a slurry consisting of CaO powder and phosphoric acid. The morphology of the synthesized powder was changed to a more porous structure and the particles showed a finer crystallite size by the addition of PEG in the solution process. The synthesized HAp powder employing PEG showed a higher surface area of 34.0 m2/g and a denser sintered microstructure in comparison with that prepared without PEG. The porous and soft agglomerated powders prepared by the application of the PEG polymer were easily dispersed to nano-sized powders of about 80~100 nm by an ultrasonic process and the powder compacts were well densified at 1300 οC for 1 h showing a fine grain size of 1.2 μm.
참고문헌 (22)
- A. Deptula, , J. Non-Cryst. Solids, 147, pp.537~541 (1992)
- M. Yoshimura, , J. Mater. Sci, 29, pp.3399~3402 (1994)
- M.G.S. Murray, , J. Mater. Sci, 30, pp.3061~3074 (1995)
- G.K. Lim, , Mater. Lett, 28, pp.431~436 (1996)
- C.P. Yoganand, , Ceram. Int, 36, pp.1757~1766 (2010)
- Y. Wu, , Langmuir, 21, pp.3232~3234 (2005)
- 우기도, "통전가압활성소결에 의한 생체재료용 Ti-HA복합재료 제조 및 특성", 대한금속·재료학회지, 47(8), pp.508~515 (2009), 대한금속·재료학회
- P. Layrolle, , J. Am. Ceram. Soc, 81, pp.1421~1428 (1998)
- G.K. Lim, , Biomaterials, 18, pp.1433~1439 (1997)
- N.S. Oh, , Key Eng. Mater, 330-332, pp.23~26 (2007)
- Sang-Jin Lee, "Characteristics of calcium phosphate fabricated using a natural material", Journal of Ceramic Processing Research, 11(5), pp.586~590 (2010), 세라믹공정연구센터
- S.J. Lee, , J.Am. Ceram. Soc, 81, pp.2605~2612 (1998)
- D.M. Liu, , Biomatcrials, 17, pp.1955~1957 (1996)
- J.Chandradass, "Effect of Acidity on the Citrate-Nitrate Combustion Synthesis of Alumina-Zirconia Composite Powder", Metals and Materials International, 15(6), pp.1039~1043 (2009), 대한금속·재료학회
- A.K. Adak, , J. Mater. Sci. Lett, 16, pp.234~235 (1997)
- M.A. Gülgün, , J. Am. Ceram. Soc, 82, pp.556~560 (1999)
- 이상진, "Densification and mechanical properties of multiphase ceramic composites fabricatedby a polymer complexation route", Journal of Ceramic Processing Research, 6(1), pp.85~89 (2005), 세라믹공정연구센터
- Sang-JinLee, "Fabrication of Nano-sized Titanate Powder via a Polymeric steric Entrapment Route and Planetary Milling Process", 한국세라믹학회지, 39(4), pp.336~340 (2002), 한국세라믹학회
- S.J. Lee, , J. Am. Ceram. Soc, 82, pp.2049~2055 (1999)
- D.A. Fumo, , Mater. Res. Bull, 31, pp.1243~1255 (1996)
- M.K. Muthuraman, , Mater. Res. Bull, 31, pp.1375~1381 (1996)
- R.T. DeHoff, "Quantitative Microscopy" (1968), McGraw-Hill