Which mechanism influences temperature control in shape-memory alloy actuators undergoing phase transitions?

💡 Explanation

When a shape-memory alloy transitions between martensite and austenite, latent heat is absorbed during heating or released during cooling because energy is required to change the crystal structure configurations, affecting temperature. Therefore latent heat governs thermal behavior, rather than joule heating, thermal expansion, or piezoelectricity, which are unrelated to phase change energetics.

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