Thermal Insulation Applicable to Complex-Shaped Metal Component

Request Number REQ2344276
Due Date June 2, 2017
Request for Proposal Details
RFP Title
Thermal Insulation Applicable to Complex-Shaped Metal Component
RFP Description

NineSigma, representing a multibillion-dollar major automobile-related manufacturer, seeks a thermal insulation technology applicable to a complex 3D-shaped metal component. Technologies that are, in principle, excellent in thermal properties and workability are welcomed, even if they are yet far from commercialization.


The client is working on the development of a next-generation automobile component. The temperature of gas flowing inside the component is higher than the conventional system, and the client is facing a challenge that the heat is dissipated to the outside of the component. The higher the temperature, the higher heat dissipation through radiation. Hence, reduction of heat radiation is essential to successfully implement the next-generation component.


A possible approach is to fill the air-based thermal insulation layer with a thermal insulation material into or onto the component. However, such a method usually involves a complicated process, which is a hurdle toward the commercialization. On the other hand, developments of thermal insulation technologies against heat radiation or other types of heat dissipation have been active in various fields, and there may exist technologies that may help overcoming the hurdle. Thus, the client has decided to publicly request the technology from those various fields.


Metal component to be processed

The metal component has a dual-wall structure as in the following schematic figure.

Figure. Sectional view of metal component


  • Distance between the metal walls, which acts as thermal insulation layer: 5 mm
  • Diameter of the inner wall: Approx. 220 mm
  • Metal component material: Heat-resistant metal such as casted or stainless steel


The actual component does not have a circular-shape but a complex-shape. The thermal insulation between the inner and the outer walls is based on the air in-between the walls, which prevents the heat of the high temperature (700 to 1100°C) gas-flow inside the component from dissipating outside of the component. Hence, the client seeks solutions minimizing the heat dissipation toward outside of the component.


One point to note is that, according to past testing, the dominant factor of the heat dissipations in the current design is radiative heat transfer between the inner and outer walls.


Anticipated Project Phases or Project Plan

Respondents should submit proposals using the attached Response Template (click here to download template).


The client will review submitted proposals and possibly ask clarifying questions before selecting the most suitable candidates for collaboration. The client will select the best candidate(s) through evaluations. During the selection process, the client may execute non-disclosure agreements (NDA) with selected respondent(s), seek further information disclosure, and discuss specific development targets or potential opportunities.


The client will execute necessary agreement(s) with the selected respondent(s) and move to the advanced development phase. Specifics of any collaboration will be determined through consultation with the concerned parties. 



Key Success Criteria

Technology Requirements

Not only technologies that meet all the following requirements but also those that may meet them through future development efforts are welcome.

  • Thermal insulating properties at 700-1100°C
    • Emissivity: 0.2 or less
    • Thermal conductivity: 0.05 W/mK or less
  • Thermostability
    • Being air-stable at 700-1100°C
    • Being tolerable against repeated temperature changes between normal temperature and high temperature (700- 1100°C). The component is exposed to the temperature change about once a day for several years.
  • Workability
    • Able to be applied to a 3D-shaped metal plate through a simple process (Not need to be applicable to the inner wall surface of extremely narrow space, since the process is anticipated to be conducted before assembling the dual-walls)
  • Having been developed and prototyped, and a sample is available upon request


Possible Approaches

Possible approaches might include, but are not limited to:

  • Coating that reduces radiative heat transfer between the inner and outer walls
  • Coating that reduces heat transfer from the gas toward the metal walls
  • Surface structure design that reduces radiative heat transfer
  • An improved technology to install a sophisticated thermal insulation material to the outside of the component or inside air-based thermal insulation layer through a simple process (for example, spraying or coating)
  • Technology that prevents deterioration of a mirror finish owing to high temperature
  • Thermal insulation technology that can reduce deterioration such as cracking owing to a difference in the coefficient of linear thermal expansion between the metal component and the coating/ layer/ structure created by the proposed technology
  • Combination of two or more of the technologies above

The current design has a dual-wall structure, but the client is considering removal of the outer wall if an adequate level of thermal insulation property is achieved without it.



Preferred Collaboration types
  • Joint Development
  • Technology Licensing
  • Supply Agreement
Items to be submitted

To respond, please make sure you are registered in NineSights, as it will prompt you to log in. Then, use the Response options at the top or bottom of the page. You may submit supplemental files in addition to your completed response form.


Appropriate responses will use the response template and address the following:

Responses will use the Proposal Template which can be downloaded here and include the following items:

  • Details about the proposed technology
    • Outline and how the technology works
    • Uniqueness and superiority
    • Development stage (Under lab-scale development / Under development for practical use / Implemented for practical use)
  • Current performance
    • Emissivity, reflectivity, and/or thermal conductivity (W/mK)
    • Thermostability (stability in air at 700-1100°C and durability under repeated temperature changes)
    • Processes of installation/treatment
    • Past record of application for similar purposes
  • Issues expected toward application to this project
  • Information you want to ask the client for
  • Sample testing conditions (available sample quantity, cost, required time, contract terms and conditions, etc.)
  • Prospect for scaling up
  • Past record (such as technical papers or other documentation for introducing your developed product)
  • Organization overview


Area of Interest
Request Priority