What is ISO 21713 about?
ISO 21713 specifies the determination of elastic modulus of ceramics at high temperatures up to 2 100 °C by using the thin wall relative C-ring method. Procedures for test piece preparation, test modes, heat rate, load rates, data collection and reporting are given.
ISO 21713 applies primarily to ceramic materials including monolithic fine ceramics, refractory materials, whisker and particulate-reinforced ceramic composites.
Note: This method is not applicable to super plastic ceramics or ceramics with high creep rate.
Who is ISO 21713 for?
ISO 21713 on determination of elastic modulus of ceramics at high temperature is relevant to:
- Ceramic manufacturers
- Mechanical engineers
Why should you use ISO 21713?
Elastic modulus is the ratio of stress, below the proportional limit, to the corresponding strain. It is the measure of rigidity or stiffness of a material. In terms of the stress-strain curve, the modulus of elasticity is the slope of the stress-strain curve in the range of linear proportionality of stress to strain.
The elastic modulus (Young's Modulus) of ceramics is usually higher than for metals, because ceramics are bonded either covalently or ionically. This bonding is stronger than metallic bonding.
Determination of this elastic modulus of ceramics is an important design parameter used for computing elastic deflections. ISO 21713 specifies procedures to calculate the elasticity of ceramics. With the determination of elasticity, an understanding of the strength of the ceramics is established, which will help you in ensuring credibility and reliability in your production.
