Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 104, Issue 11, Pages 5521-5528Publisher
WILEY
DOI: 10.1111/jace.17964
Keywords
cold sintering; damping materials; ordered porous structure; zeolite ceramics
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Funding
- National Natural Science Foundation of China [U20A20243]
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4A and 13X zeolite ceramics were prepared by cold sintering processes, with key parameters including NaOH content, pressure, temperature, and holding time. The ceramics exhibited ordered microporous structure and high crystallinity, with potential applications in damping and thermal insulation materials, achieving high compressive strength and low Young's modulus.
4A [Na-96(Al96Si96O384).216H(2)O] and 13X [Na-2(Al2Si3.3O10.6).7H(2)O] zeolite ceramics were prepared by cold sintering processes, and the physical properties were investigated together with the structure characterization. There were four primary parameters controlling the preparation process: content of NaOH, pressure, temperature, and holding time. Zeolite ceramics with the idea ordered microporous structure and high crystallinity were obtained at 393 K under 450 similar to 550 MPa with a holding time of 5 min from the solution with 20 wt% NaOH. A high compressive strength up to 60 MPa and low Young's modulus down to 76 MPa were achieved in 13X zeolite ceramics, and the present ceramics might provide potential applications in damping materials and thermal insulating materials.
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