Routine Performance Testing

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Thermal Performance Testing

Thermal performance testing is used to characterize the behavior of materials under the influence of temperature, including heat transfer, dimensional changes, and high-temperature stability, and to obtain key parameters. It supports material formulation optimization, structural design, and service condition assessment, and is an indispensable characterization method for the research, development, and engineering application of high-temperature composite materials.

1. Thermal Conductivity, Thermal Diffusivity, and Specific Heat Capacity characterize the heat conduction and heat storage capabilities of materials. They can distinguish between thermal insulation and thermal conduction types of materials; provide basic data for temperature field simulation of components; guide the design of hot-end heat dissipation and thermal insulation structures; and analyze the effects of pores, fiber orientation, and interfaces on heat transfer characteristics.

2. High-Temperature Thermal Expansion Performance reflects the dimensional change behavior of materials during heating. It is used to match dissimilar material joints, design coating and substrate systems, predict thermal stress generated under temperature cycling, and avoid interface cracking and component deformation failure.

3. Thermogravimetric Analysis (TG-DSC) measures the thermal weight loss and phase transition behavior of materials under different atmospheres. It clarifies the initial oxidation temperature of materials, evaluates the protective effect of anti-oxidation coatings, and determines the upper limit of safe service temperature for materials.

Testing Products

Solid materials such as fine ceramics, metal materials, glass materials, ceramic matrix composites, carbon-carbon composites, polymer materials, etc.

Testing Items

Linear Thermal Expansion

Thermal Conductivity, Thermal Diffusivity

Thermogravimetry

Glass Transition Temperature

Enthalpy

Specific Heat Capacity

Testing Standards

GJB 1201.1A-2021 Test method for high-temperature thermal diffusivity of solid materials — Part 1: Laser pulse method

GB/T 22588-2008 Determination of thermal diffusivity or thermal conductivity by the flash method

GB/T 39862-2021 Testing of thermal conductivity of high thermal conductivity ceramics

JC/T 2755-2023 Test method for high-temperature specific heat capacity of fine ceramics — Differential scanning calorimetry (DSC)

GB/T 32064-2015 Thermal conductivity and thermal diffusivity of building materials — Transient plane heat source test method

GB/T 4339-2008 Determination of thermal expansion characteristic parameters of metallic materials

GB/T 16535-2008 Test method for linear thermal expansion coefficient of fine ceramics — Push-rod method

GB/T 16920-2015 Glass — Determination of average linear thermal expansion coefficient

YBB 00202003-2015 Determination method for average linear thermal expansion coefficient

JC/T 2757-2023 Test method for thermal diffusivity of fine ceramics — Laser flash method

ASTM E228 Standard test method for linear thermal expansion of solid materials with a push-rod dilatometer

ISO 22007-2:2022 Plastics — Determination of thermal conductivity and thermal diffusivity — Part 2: Transient plane heat source (hot disc) method

ASTM E537-24 Standard test method for thermal stability of chemicals by differential scanning calorimetry

ASTM C1470 Standard guide for testing thermal properties of advanced ceramics

ASTM E228-22 Standard test method for linear thermal expansion of solid materials — Push-rod method

GB/T 22232-2008 Standard test method for thermal stability of chemicals by differential scanning calorimetry

Service Advantages

The laboratory possesses testing capabilities ranging from low temperature −150°C to 600°C; room temperature to 1600°C; and room temperature to 2000°C, with sufficient capacity and a wide range of materials. The testing environment covers air, inert atmosphere, and corrosive environments (thermogravimetry).