Heat resistant and oxidation resistant structures

Abstract

Abstract TEMPERATURE-RESISTANT STRUCTURE SUBSTANTIALLY IN THE IMAGE OF SAID FIRST BASIC STRUCTURE. THE ABOVE STRUCTURE IS THEN COATED WITH ANY ONE OF A NUMBER OF HIGH TEMPERATUREOXIDATION-RESISTANT ORGANIC RESINS HAVING A FUSION TEMPERATURE AND A VISCOSITY SUCH THAT THEY WILL ADHERE TO A STRUCTURE AND MAINTAIN AN INTEGRAL OXIDATION-RESISTANT COATING AT TEMPERATURES OF UP TO 700*F. AND EVEN HIGHER. POROUS CELLULAR STRUCTURES COMPRISED OF AN INFUSIBLE RESIN, WHICH MAY OR MAY NOT BE PYROLZED OR CARBONIZED WHOLLY OR IN PART, AND WHICH MAY BE A COATING UPON A SKELETAL STRUCTURE WHICH IS THE PYROLYZED PRODUCT OF THE MATERIAL COMPRISING AN ORIGINAL STRUCTURE, THE INFUSIBLE RESIN HAVING A COATING THEREON OF A SUITABLE HEAT-RESISTANT AND OXIDATION-RESISTANT RESIN WHICH MAY BE EITHER THERMOPLASTIC OR THERMOSETTING. A METHOD FOR TREATING CELLULAR STRUCTURES TO FORM THE ABOVE STRUCTURES FROM MATERIALS WHICH FUSE OR MELT AT RELATIVELY LOW TEMPERATURES, THAT IS, BELOW ABOUT 400*F. SUCH THAT THE FINALLY EVOLVED PRODUCT WILL ASSUME SUBSTANTIALLY THE SAME PHYSICAL OR STRUCTURAL SHAPE OF THE RELATIVELY LOW FUSION TEMPERATURE MATERIAL AND YET WILL PROVIDE A STRUCTURE WHICH IS RELATIVELY STABLE AND POSSESS GREATER STRENGTH AT HIGHER TEMPERATURES, THAT IS, ON THE ORDER OF 700*F. OR HIGHER. IN THE METHOD, A FIRST BASIC STRUCTURE HAVING A DESIRED CONFIGURATION AND COMPRISED OF MATERIAL HAVING A LOW FUSION OR DETERIORATION TEMPERATURE IS COATED AT OVEN LOWER TEMPERATURES WITH AN INFUSIBLE RESIN WHICH IS CAPABLE OF BEING CURED AT A TEMPERATURE LOWER THAN THE RELATIVELY LOW FUSION OR DETERIORATION TEMPERATURE OF THE MATERIAL COMPRISING THE FIRST BASIC STRUCTURE. THE RESULTING COATED STRUCTURE IS THEN SUBJECTED TO ELEVATED TEMPERATURES SO THAT THE BASIC STRUCTURE IS PYROLYZED AND CARBONIZED LEAVING A STRONGER, HIGH-

Inventors

• 👤 W Adams

Bibliographic Details