høytemperaturoksidasjon

High temperature refers to conditions where the temperature is significantly above a defined reference point. In scientific contexts, this reference is relative to ambient conditions or material-specific thresholds. The term is used across disciplines, and the precise numerical values that constitute 'high' vary with application.

Temperature is measured in units such as Celsius, Kelvin, or Fahrenheit. Common instruments include mercury or alcohol thermometers, thermocouples, resistance temperature detectors, and infrared sensors. In industrial settings, calibrated sensors and data loggers track temperature over time.

At elevated temperatures, reaction rates generally increase, diffusion accelerates, and materials can undergo phase changes. Many substances become reactive or unstable; metals may soften or melt; ceramics and refractories are designed to withstand high heat.

High-temperature processes are central to metallurgy, glassmaking, cement production, and electronics manufacturing. They rely on furnaces, kilns, and burners to reach and control temperatures, with precise control of heating rates, atmospheres, and cooling.

Exposure to extreme heat poses health and safety risks, including heat stroke and burns. Protective equipment, cooling strategies, hydration, and monitoring are essential in occupations involving high-temperature work.

Climate-related high-temperature events, such as heat waves, affect energy demand, agriculture, and infrastructure. Understanding high-temperature behavior supports design of resilient systems and safer industrial practices.