השוואת שיטות

	שטח פנים BET	קלורימטריית סריקה דיפרנציאלית
תחום	מדעי החומרים	מדעי החומרים
משפחה	Process / pipeline	Process / pipeline
שנת המקור	1938	1964
הוגה השיטה	Brunauer, Emmett, Teller	E. S. Watson
סוג	Measurement method	Measurement method
מקור מכונן	Brunauer, S., Emmett, P. H., & Teller, E. (1938). Adsorption of gases in multimolecular layers. Journal of the American Chemical Society, 60(2), 309-319.	Watson, E. S., O'Neill, M. J., Justin, J., & Brenner, N. (1964). A differential scanning calorimeter for quantitative differential thermal analysis. Analytical Chemistry, 36(7), 1233-1238.
כינויים	BET analysis, nitrogen adsorption, surface area measurement	DSC, differential thermal analysis, thermal analysis
קשורות	3	3
תקציר	Brunauer-Emmett-Teller (BET) Surface Area Analysis is a technique for measuring the specific surface area of solids by analyzing their nitrogen adsorption isotherms. Developed by Brunauer, Emmett, and Teller in 1938, BET theory extends monolayer adsorption (Langmuir) to multilayer adsorption, enabling quantification of surface area of porous and powdered materials. It is the industry standard for characterizing catalysts, adsorbents, pharmaceuticals, and porous materials, providing critical data for performance prediction and quality control.	Differential Scanning Calorimetry (DSC) is a thermal characterization technique that measures the heat flow required to maintain a sample and an inert reference at the same temperature while both are heated or cooled. Invented by Watson, O'Neill, and colleagues in 1964, DSC directly quantifies enthalpy changes during phase transitions, crystallization, melting, and chemical reactions. It is the standard tool in materials science, chemistry, and pharmaceutical research for determining thermodynamic properties, thermal stability, and kinetics of thermal transitions.