Elastomeric rocket motor insulation.U.S. patent: 7,012,107 Issued: March 14, 2006 Inventors: Albert R. Harvey and John W. Ellertson Assigned: Alliant Techsystems Alliant Techsystems NYSE: ATK is a major US aerospace and defense contractor with sales of approximately USD $3.6 billion (fiscal year 2007) [1] and strong positions in propulsion, composite structures, munitions, precision capabilities, and civil and sporting Key statement: A rocket motor insulation insulation (ĭn'səlā`shən, ĭn'sy  –), use of materials or devices to inhibit or prevent the conduction of heat or of electricity. including an elastomer-based polymer is improved in its processability by the addition of silica silica or silicon dioxide, chemical compound, SiO2. It is insoluble in water, slightly soluble in alkalies, and soluble in dilute hydrofluoric acid. Pure silica is colorless to white. particles treated with a hydrophobic hydrophobic /hy·dro·pho·bic/ (-fo´bik)1. pertaining to hydrophobia (rabies). 2. not readily absorbing water, or being adversely affected by water. 3. coating and includes a metallic coagent crosslinker, which when used in combination with the hydrophobic silica particles increases the tear strength and the elasticity of the insulation. |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion