PlumX Metrics
Embed PlumX Metrics

Preparation of porous Al 2 O 3 ceramics with enhanced properties by SLS using Al 2 O 3 poly-hollow microspheres (PHMs) coated with CaSiO 3 sintering additive

Ceramics International, ISSN: 0272-8842, Vol: 46, Issue: 17, Page: 26888-26894
2020
  • 40
    Citations
  • 0
    Usage
  • 19
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    40
    • Citation Indexes
      40
  • Captures
    19

Article Description

The mechanical properties of porous ceramics prepared by poly-hollow microspheres (PHMs) is usually low because of the weak bonding between different ceramic PHMs. In this paper, CaSiO 3 were coated to the surface of Al 2 O 3 PHMs through co-precipitation method as sintering additive to improve the properties of Al 2 O 3 poly-hollow microsphere ceramics (Al 2 O 3 PHM ceramics). The influence of different amount of CaCl 2 solution on properties of the Al 2 O 3 PHM ceramics such as phase composition, microstructure, porosity and mechanical properties were studied. The porosity of the Al 2 O 3 PHM ceramics decreased from 77.03% to 68.16% with the increase of CaCl 2 solution amount, while compressive strength increased 29 times from 0.29 MPa to 8.39 MPa. The addition of the CaSiO 3 could decrease the sintering temperature of Al 2 O 3 PHM ceramics and significantly improve the mechanical properties of Al 2 O 3 PHM ceramics, which is beneficial for preparing highly porous Al 2 O 3 PHM ceramics with high mechanical properties and complex shapes.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know