PMID- 14613228
OWN - NLM
STAT- MEDLINE
DCOM- 20040914
LR  - 20131121
IS  - 1549-3296 (Print)
IS  - 1549-3296 (Linking)
VI  - 67
IP  - 3
DP  - 2003 Dec 1
TI  - Hydroxyapatite whiskers provide improved mechanical properties in reinforced 
      polymer composites.
PG  - 801-12
AB  - Synthetic hydroxyapatite (HA) whiskers have been utilized as a new, biocompatible 
      reinforcement for orthopedic biomaterials. High-density polyethylene (HDPE) was 
      reinforced with either the synthesized HA whiskers or a commercially available 
      spherical HA powder using a novel powder processing technique that facilitated 
      uniform dispersion of the reinforcements in the matrix prior to compression 
      molding. Composites were processed for up to 60 vol % HA whiskers and up to 50 
      vol % spherical HA. The mechanical properties of the new composite biomaterials 
      were examined by uniaxial tensile tests. As expected, increased volume fraction 
      of either reinforcement type over 0-50 vol % resulted in increased elastic 
      modulus, a maximum in ultimate tensile stress, and decreased work to failure. 
      Composites reinforced with HA whiskers had higher elastic modulus, ultimate 
      tensile strength, and work to failure relative to composites reinforced with 
      spherical HA. Thus, HA whisker-reinforced HDPE composites possessed improved 
      mechanical properties over those reinforced with spherical HA. HA 
      whisker-reinforced composites were anisotropic due to alignment of the whiskers 
      in the matrix during processing.
CI  - Copyright 2003 Wiley Periodicals, Inc. J Biomed Mater Res 67A: 801-812, 2003
FAU - Roeder, Ryan K
AU  - Roeder RK
AD  - Department of Aerospace and Mechanical Engineering, University of Notre Dame, 381 
      Fitzpatrick Hall, Notre Dame, IN 46556-5637, USA. rroeder@nd.edu
FAU - Sproul, Michael M
AU  - Sproul MM
FAU - Turner, Charles H
AU  - Turner CH
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Biomed Mater Res A
JT  - Journal of biomedical materials research. Part A
JID - 101234237
RN  - 0 (Biocompatible Materials)
RN  - 0 (Composite Resins)
RN  - 9002-88-4 (Polyethylene)
RN  - 91D9GV0Z28 (Durapatite)
SB  - IM
MH  - Biocompatible Materials/chemical synthesis/pharmacology/*standards
MH  - Biomechanical Phenomena
MH  - Composite Resins/chemical synthesis/*pharmacology
MH  - Durapatite/chemical synthesis/*pharmacology
MH  - Materials Testing
MH  - Polyethylene/pharmacology
MH  - Surface Properties
EDAT- 2003/11/13 05:00
MHDA- 2004/09/15 05:00
CRDT- 2003/11/13 05:00
PHST- 2003/11/13 05:00 [pubmed]
PHST- 2004/09/15 05:00 [medline]
PHST- 2003/11/13 05:00 [entrez]
AID - 10.1002/jbm.a.10140 [doi]
PST - ppublish
SO  - J Biomed Mater Res A. 2003 Dec 1;67(3):801-12. doi: 10.1002/jbm.a.10140.