| http://www.w3.org/ns/prov#value | - Advantageously, such a ceramic-non-ceramic composite of Martin can exhibit reduced density, and therefore reduced weight, because it is constituted as if part of the ceramic material has been replaced with less dense material; in effect, a metal (especially, a light metal such as aluminum), a polymer (e.g., elastomer), or a glass has been substituted for a portion of the total volume of the cerami
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