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    Basic Information

Technology developed: Method of Joining Hafnium-and Zirconium-diborides Based Ultra-high Temperature Ceramic and Composite (TP19768610664)
Category: Product(Hardware/Material/Software)
Details of Inventor(s):
Inventor Institution/Organization/Company Department Designation
Shipra Bajpai IIT Kanpur Material Science and Engineering Ph.D. Student
Alok Bhadauria IIT Kanpur MAterial Science and Engineering Post Doc
T. Venkateswaran Vikram Sarabhai Space Centre, Thiruvananthapuram Scientist
Sudhanshu Shekhar Singh IIT Kanpur MAterial Science and Engineering Professor
Kantesh Balani IIT Kanpur MAterial Science and Engineering Professor
Technical Application Area: Chemicals & Materials Science
If 'Other', please specify:
Please give more details of new technical application area:
Organization(s):
Indian Institute of Technology (IIT) Kanpur
Affiliated Ministry: Ministry of Education
Type of technology development: Indigenous
Does the technology help in replacing any import items currently
procured from outside India?
Yes
Does the technology have export potential? Yes
Category of Technology developed: Immediate Deployment
Stage of Development: Lab-scale
Please describe in detail including the TRL Level:
Plan is being developed

    Abstract:

Applications: Hafnium and Zirconium diborides has already been established as good choice for Ultra-high temperature ceramics (UHTC) due to their high melting point (greater than 3000 degree C) and excellent set of properties. However, real-life applications of UHTCs require the step of joining in order to realize the final complex shapes. There are very few reports about joining of UHTCs that too involve the vacuum brazing along with some metallic interlayer. Therefore, in the present work an emerging technique of joining via spark plasma joining is utilized where two pre-sintered HfB2-ZrB2 based composites are joined via SPS with Ni interlayer.
Advantages: Hafnium and Zirconium diborides are good choice for extreme environments involving sharp leading edges and nose cones of hypersonic vehicles for re-entry applications, high temperature crucibles etc. However, for real life applications, these ceramics need to be joined to base superalloy of body structure as well as to the ceramics itself. Spark plasma joining method, used in the present work, enables the joining of diboride based UHTCs even at lower temperature and within shorter duration as compared to the other brazing techniques. Therefore, the present invention can be used to join the ceramics for aerospace applications, electronic packaging etc

    Technology Inputs:

Imported Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
NA
Indigenous Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
NA
Imported Raw Materials:
Raw Materials Year ITC-HS Code
NA
Indigenous Raw Materials:
Raw Materials Year ITC-HS Code
NA
Existing R&D Facilities used:
Facilities Year ITC-HS Code
NA

   Patents & Publications:

Patents:
Filed Patents (No.) Granted Patents (No.) Year
1 0 NA
Publications:
Submitted (No.) Published (No.) Year
0 1 NA

    Commercialization Potential:

Who are the Potential Licensees? Bhukhanwala Industries Pvt. Ltd., Thermal Ceramics, Anod Plasma Spray Limited, DMRL, BARC, DRDO, VSSC
What commercially available products address
the same problem?
Company Product Problem Addressed
Would you like to develop this invention further with
corporate research support?
Yes
Would you be interested in participating in cluster based
programs for commercialization research or business
planning for your invention?
Yes
      Submitted by: J.G. Rao Date of Submission: 5-5-2022



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