Pressure-driven fusion of amorphous particles into integrated monoliths

Author:

Mu Zhao1ORCID,Kong Kangren1ORCID,Jiang Kai2ORCID,Dong Hongliang34ORCID,Xu Xurong5ORCID,Liu Zhaoming1ORCID,Tang Ruikang16ORCID

Affiliation:

1. Department of Chemistry, Zhejiang University, Hangzhou 310027, China.

2. Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, East China Normal University, Shanghai 200241, China.

3. Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China.

4. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.

5. Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China.

6. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China.

Abstract

The making of a monolith Amorphous calcium carbonate is a hard material that is difficult to make into large, clear blocks. It is also sensitive to heating, and compacting the starting nanoparticles too much tends to lead to crystallization. Mu et al. determined the optimal amount of water in amorphous calcium carbonate to create clear, solid monoliths through compression. The key is to regulate the amount of diffusion in the system so that particle boundaries fuse without triggering sample-wide crystallization. This fusion strategy may also work for similar amorphous inorganic ionic compounds. Science , abg1915, this issue p. 1466

Funder

National Natural Science Foundation of China

Fundamental Research Funds for the Central Universities

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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