When comparing bronze and ceramic sculptures in terms of thermal properties, several key differences emerge. Bronze, a metal alloy, exhibits high thermal conductivity, meaning it quickly absorbs and dissipates heat. This property makes bronze sculptures more resistant to sudden temperature changes, reducing the risk of cracking or warping. In contrast, ceramic sculptures, made from clay and fired at high temperatures, have lower thermal conductivity. While ceramics can withstand high heat once fired, they are more prone to thermal shock, which can cause cracking if exposed to rapid temperature fluctuations.

Bronze sculptures also retain heat longer due to their density, making them ideal for outdoor installations where temperature variations are common. Ceramics, however, may require additional protective measures in extreme climates. Additionally, bronze's melting point (around 950°C) is higher than most ceramics, which typically fire between 1,000°C to 1,300°C but can become brittle under repeated thermal stress.

Ultimately, the choice between bronze and ceramic depends on the intended environment and artistic goals. Bronze offers durability and heat resistance, while ceramics provide a delicate aesthetic but require careful handling in variable temperatures.