Overview

Extrusion processing which involves the shaping of a visco-plastic formable paste through a specially designed die is the most commonly used technique used for the manufacture of honeycombs and tubes. The honeycomb extrusion is a complex process involving lateral flow of the dough followed by the knitting with adjacent cross section within the die the rheological properties of the dough play a major role. Because of the flexibility in tailoring, honeycombs can be engineered to exhibit a unique combination of mechanical and thermal properties for diversified thermo structural applications Rheological properties depends on a variety of factors such as the choice of the binder, the extent of solids loading in the dough, the particle characteristics of the ceramic powder used, etc.

Key Features

  • Extrusion process for wide range of ceramic formulations
  • Low expanding honeycomb cellular ceramics
  • Thin walled porous and dense tubes
  • Ram and Screw type extrusion processes
  • Capability to design and fabricate in-house dies including for honeycombs
  • Optimized heat treatment schedules based on the ceramic formulation
  • Engineered structural, thermal and mechanical properties

Potential Applications

  • Kiln Furniture and furnace fixtures
  • Honeycomb substrates for catalysis
  • Energy absorption, conservation and generation
  • Environmental protection 

Status

  • Patented In-house honeycomb die fabrication technology in collaboration with Samara State University, Samara
  • Ready to demonstrate extrusion process
  • Extrusion technology for porous and dense tubes 

Intellectual Property Development Index (IPDI)

Level 1 2 3 4 5 6 7 8 9 10
Description Basic concepts and understanding of underlying scientific principles Shortlisting possible applications Research to prove technical feasibility for targeted application Coupon level testing in simulated conditions Check repeatability/consistency Prototype testing in real-life conditions Check repeatability/consistency Reassessing feasibility (IP, competition technology, commercial) Initiate technology transfer Support in stabilizing production
Status

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Technology Readiness Level (TRL)

TRL 1 2 3 4 5 6 7 8 9
Description Basic Principles Concept Formulation Proof of Concept Lab Validation Relevant Environment Prototype Demo Operational Demo System Qualified Proven / Market Ready
Status