US 11,718,731 B2
Process and formulation to join ceramic forms while maintaining structural and physical characteristics across the bond surface
Tab H. Crooks, Dana Point, CA (US); and Maryann S. Muench, La Mirada, CA (US)
Assigned to The Boeing Company, Arlington, VA (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Mar. 24, 2020, as Appl. No. 16/828,527.
Application 16/828,527 is a division of application No. 14/585,505, filed on Dec. 30, 2014, granted, now 10,703,879.
Prior Publication US 2020/0224003 A1, Jul. 16, 2020
Int. Cl. C08K 3/38 (2006.01); B32B 37/06 (2006.01); B32B 18/00 (2006.01); B32B 5/32 (2006.01); B32B 7/12 (2006.01); C04B 41/00 (2006.01); C04B 41/80 (2006.01); C04B 37/00 (2006.01); C04B 35/626 (2006.01); C04B 35/636 (2006.01); C04B 37/02 (2006.01); B32B 37/12 (2006.01); B32B 7/027 (2019.01)
CPC C08K 3/38 (2013.01) [B32B 5/32 (2013.01); B32B 7/027 (2019.01); B32B 7/12 (2013.01); B32B 18/00 (2013.01); B32B 37/06 (2013.01); B32B 37/1207 (2013.01); C04B 35/6269 (2013.01); C04B 35/6365 (2013.01); C04B 37/005 (2013.01); C04B 37/008 (2013.01); C04B 37/025 (2013.01); C04B 37/028 (2013.01); C04B 41/009 (2013.01); C04B 41/0072 (2013.01); C04B 41/80 (2013.01); B32B 2262/105 (2013.01); B32B 2262/106 (2013.01); B32B 2266/06 (2013.01); B32B 2305/22 (2013.01); B32B 2305/72 (2013.01); B32B 2309/02 (2013.01); B32B 2315/02 (2013.01); C04B 2235/522 (2013.01); C04B 2235/524 (2013.01); C04B 2235/526 (2013.01); C04B 2235/5224 (2013.01); C04B 2235/5228 (2013.01); C04B 2235/5232 (2013.01); C04B 2235/5236 (2013.01); C04B 2235/5244 (2013.01); C04B 2235/5248 (2013.01); C04B 2235/9607 (2013.01); C04B 2237/062 (2013.01); C04B 2237/064 (2013.01); C04B 2237/068 (2013.01); C04B 2237/08 (2013.01); C04B 2237/083 (2013.01); C04B 2237/086 (2013.01); C04B 2237/32 (2013.01); C04B 2237/34 (2013.01); C04B 2237/341 (2013.01); C04B 2237/343 (2013.01); C04B 2237/346 (2013.01); C04B 2237/348 (2013.01); C04B 2237/36 (2013.01); C04B 2237/365 (2013.01); C04B 2237/366 (2013.01); C04B 2237/38 (2013.01); C04B 2237/401 (2013.01); C04B 2237/52 (2013.01); C04B 2237/561 (2013.01); C04B 2237/597 (2013.01); C04B 2237/708 (2013.01); C08K 2003/387 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method for forming a cured ceramic structure comprising the steps of:
(a) applying a bonding material to at least one bonding surface selected from a first bonding surface of a first substrate piece and a second bonding surface of a second substrate piece,
wherein the bonding material consists off
chopped fibers,
from about 0.05 to about 1.0 wt % of a fluxing agent selected from the group consisting of sodium carbonate, boron carbide, lithium metaborate, cadmium borate, cadmium borosilicate, bismuth oxide, lithium tetraborate, lead borosilicate, and combinations thereof, and a thickening agent wherein the thickening agent is a starch, a vegetable gum, a sugar, a protein, pectin, gelatin, cellulosic material or a combination thereof;
(b) joining the first bonding surface and the second bonding surface such that the bonding material is positioned between the first bonding surface and the second bonding surface to form a ceramic structure including an uncured bonding material; and
(c) heating the ceramic structure at a temperature of from about 1,000° C. to about 1,600° C. for a time sufficient to form a ceramic structure including a cured bonding material.