Standard Test Method for Advanced Ceramic Specific Surface Area by Physical Adsorption

Importancia y uso:

5.1 Advanced ceramic powders and porous ceramic bodies often have a very fine particulate morphology and structure that are marked by high surface-to-volume (S-V) ratios. These ceramics with high S-V ratios commonly exhibit enhanced chemical reactivity and lower sintering temperatures. Results of many intermediate and final ceramic processing steps are controlled by, or related to, the specific surface area of the advanced ceramic. The functionality of ceramic adsorbents, separation filters and membranes, catalysts, chromatographic carriers, coatings, and pigments often depends on the amount and distribution of the porosity and its resulting effect on the specific surface area.

5.2 This test method determines the specific surface area of advanced ceramic powders and porous bodies. Both suppliers and users of advanced ceramics can use knowledge of the surface area of these ceramics for material development and comparison, product characterization, design data, quality control, and engineering/ production specifications.

Subcomité:

C28.03

Referida por:

C1793-15R24, C1783-15R24, C0781-20, C0757-16R21, D8325-20, E2864-18R22

Volúmen:

15.01

Número ICS:

81.060.99 (Other standards related to ceramics)

Palabras clave:

advanced ceramics; BET surface area; ceramics; krypton adsorption; multipoint surface area; nitrogen adsorption; outgassing; physical adsorption; single-point surface area; specific surface area; surface area;