Patent ID: 8974897
Filing Date: 2015-03-10
Classification: C03B,C30B,Y10T

Abstract:
1. A compacted structure, comprising: a first fused silica soot layer comprised of primary particles of fused silica soot, wherein the first fused silica soot layer is compacted from an initial density ranging from about 0.1 g/cm a second fused silica soot layer comprised of agglomerated particles formed into an agglomerated form from primary particles of fused silica soot, wherein the second fused silica soot layer is formed over the first fused silica soot layer, and the second fused silica soot layer is compacted from a modified tap density ranging from about 0.35 g/cm wherein the primary particles of the first fused silica soot layer have a substantially uniform density distribution and the agglomerated particles of the second fused silica soot layer have a substantially non-uniform density distribution.