Bulletin of Materials Science

, Volume 13, Issue 3, pp 227–234 | Cite as

Standardization of investment casting process using modified binder hydrolysis

  • Kayala Mallikharjuna Babu
  • P Martin Jebaraj
  • M P Chowdiah


A full factorial 23 matrix was designed to study the bending strength, permeability and hoop-stress of investment moulds. A novel method of ethyl-silicate hydrolysis; two-step hydrolysis, was used. The results indicate that the bending strength is directly proportional to the quantity of filler material in the slurry. Grain size of stucco material appears to exert the least effect on bending and hoop strength, whereas permeability increases slightly when coarser grain is used.


Investment casting filler material binder gel time stucco material ethyl silicate hydrolysis factorial experiment 


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Copyright information

© The Indian Academy of Sciences 1990

Authors and Affiliations

  • Kayala Mallikharjuna Babu
    • 1
  • P Martin Jebaraj
    • 2
  • M P Chowdiah
    • 3
  1. 1.Department of Mechanical and Industrial Production EngineeringDr Ambedkar Institute of TechnologyBangaloreIndia
  2. 2.Department of Mechanical EngineeringM S Ramaiah Institute of TechnologyBangaloreIndia
  3. 3.Department of Mechanical EngineeringUniversity Vishveshwarayya College of EngineeringBangaloreIndia

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