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Chemical Control over Ceramic Porosity Using Carboxylate–Alumoxane Nanoparticles
Author(s) -
Callender R. L.,
Barron A. R.
Publication year - 2000
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(200005)12:10<734::aid-adma734>3.0.co;2-z
Subject(s) - materials science , porosity , carboxylate , ceramic , nanoparticle , chemical engineering , crystal (programming language) , crystal structure , crystallography , composite material , nanotechnology , organic chemistry , chemistry , computer science , engineering , programming language
Control over porosity in ceramics is demonstrated here. Varying the size of the organic substituents in the precursor carboxylate–alumoxane [Al(O) x ‐ (OH) y (O 2 CR) z ] n nanoparticles allows the pores to be contained within the grains of the resulting α‐Al 2 O 3 . The Figure shows a single crystal of α‐Al 2 O 3 in which 20–50 nm pores (white areas) run throughout the crystal.