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Aluminum borate nanowires uniformly coated with boron nitride sheaths (see Figure) have been synthesized via a vapor–solid reaction process from alumina and B–N–O precursors. The nanocables have a length of 2∼3 μm, a diameter of 50∼150 nm, and the suggested formation mechanism involves the simultaneous growth and coating of the nanowires.
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Zhu et al. (2003) studied this question.
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