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Przeglądaj wybrane metody obok siebie; wiersze, które się różnią, są wyróżnione.
| Dynamic Light Scattering× | Skaningowa mikroskopia sił atomowych× | Powierzchnia właściwa BET× | Analiza Termograwimetryczna× | |
|---|---|---|---|---|
| Dziedzina | Inżynieria materiałowa | Inżynieria materiałowa | Inżynieria materiałowa | Inżynieria materiałowa |
| Rodzina | Process / pipeline | Process / pipeline | Process / pipeline | Process / pipeline |
| Rok powstania≠ | 1964 | 1986 | 1938 | 1960s |
| Twórca≠ | Robert Pecora | Gerd Binnig | Brunauer, Emmett, Teller | William W. Wendlandt |
| Typ≠ | Measurement method | Imaging technique | Measurement method | Characterization method |
| Źródło pierwotne≠ | Pecora, R. (1964). Spectral distribution of scattered light from a suspension of particles. Physica, 30(11), 2055-2070. link ↗ | Binnig, G., Quate, C. F., & Gerber, C. (1986). Atomic force microscope. Physical Review Letters, 56(9), 930-933. DOI ↗ | Brunauer, S., Emmett, P. H., & Teller, E. (1938). Adsorption of gases in multimolecular layers. Journal of the American Chemical Society, 60(2), 309-319. DOI ↗ | Wendlandt, W. W. (1986). Thermal Analysis (3rd ed.). John Wiley & Sons. link ↗ |
| Inne nazwy | DLS, photon correlation spectroscopy, particle size measurement | AFM, scanning probe microscopy, nanoindentation microscopy | BET analysis, nitrogen adsorption, surface area measurement | TGA, thermal gravimetry, thermogravimetry |
| Pokrewne | 3 | 3 | 3 | 3 |
| Podsumowanie≠ | Dynamic Light Scattering (DLS), also known as Photon Correlation Spectroscopy (PCS), is an analytical technique for determining the size and size distribution of particles suspended in fluids by analyzing the time-dependent intensity fluctuations of scattered laser light. Developed by Robert Pecora in 1964, DLS exploits the Brownian motion of particles: smaller particles move faster, causing faster intensity fluctuations; larger particles move slower, causing slower fluctuations. By correlating intensity over time, particle size is deduced. DLS is rapid, non-destructive, and requires minimal sample volume, making it the standard technique for characterizing nanoparticles, proteins, colloids, and emulsions. | Atomic Force Microscopy (AFM) is a scanning probe technique that measures nanoscale surface topography and mechanical properties by monitoring interactions between a sharp cantilever tip and a sample surface. Invented by Gerd Binnig in 1986 as an extension of scanning tunneling microscopy, AFM requires neither electrical conductivity nor vacuum operation, making it applicable to virtually any material. It provides three-dimensional topographic maps with sub-nanometer vertical resolution and lateral resolution approaching nanometers, along with simultaneous measurements of mechanical, electrical, and chemical properties. | 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. | Thermogravimetric Analysis (TGA) is a thermal characterization technique that continuously measures mass loss or gain of a material as a function of temperature (or time at constant temperature). Developed systematically by William Wendlandt and colleagues in the 1960s, TGA identifies thermal transitions (evaporation, decomposition, oxidation, reduction) and quantifies composition of polymers, pharmaceuticals, ceramics, and other materials. The derivative signal (DTG) highlights transition temperatures. When combined with gas analysis (MS, FTIR), decomposition products are identified. |
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