Ceramic composite beads and methods for making the same

Abstract

The disclosure relates to methods for making a ceramic or glass-ceramic, the methods comprising spray-drying a mixture comprising batch materials to form agglomerated particles; bringing the agglomerated particles into contact with a plasma for a residence time sufficient to form fused particles; and annealing the fused particles at a temperature and for a time sufficient to form ceramic or glass-ceramic particles. Fused glass particles, ceramic or glass-ceramic particles, and ceramic or glass-ceramic articles, such as ceramic honeycombs, made by these methods are also disclosed herein.

Description

[0001] related application [0002] This application claims the priority of U.S. Application No. 14 / 633695 filed on February 27, 2015 according to the patent law, the content of which is the basis of this case and is fully incorporated in this case by reference. technical field [0003] The present disclosure relates generally to methods of processing ceramics from batch materials, and more particularly to the formation of ceramics and glass-ceramics by plasma melting of spray-dried batch materials followed by, for example, annealing, ceramizing, or Post-processing of the crystallization process. Background technique [0004] Ceramic bodies are used in a variety of applications including, for example, filtration of diesel and gasoline engine exhaust and other applications such as membrane separations and flow-through catalytic converters. By way of non-limiting example, the ceramic honeycomb structure or body can be selectively plugged and used as a diesel particulate filte...

AI Technical Summary

Problems solved by technology

Thus, it may be difficult to melt the glass transition temperature (T g ) mixtures greater than about 1500°C to 1600°C

Due to said limitations, it is currently difficult, if not impossible, to make certain raw materials, especially T g Higher batch materials to produce glass ceramics

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