Thermal protection supplement for reducing interface thermal mismatch
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-005/14
B32B-007/02
출원번호
US-0010355
(2013-08-26)
등록번호
US-9688052
(2017-06-27)
발명자
/ 주소
Stewart, David A.
Leiser, Daniel B.
출원인 / 주소
The United States of America as Represented by the Adminstrator of the National Aeronautics and Space Administration
대리인 / 주소
Menke, Christopher J.
인용정보
피인용 횟수 :
0인용 특허 :
15
초록▼
A thermal protection system that reduces a mismatch of thermal expansion coefficients CTE between a first material layer (CTE1) and a second material layer (CTE2) at a first layer-second layer interface. A portion of aluminum borosilicate (abs) or another suitable additive (add), whose CTE value, CT
A thermal protection system that reduces a mismatch of thermal expansion coefficients CTE between a first material layer (CTE1) and a second material layer (CTE2) at a first layer-second layer interface. A portion of aluminum borosilicate (abs) or another suitable additive (add), whose CTE value, CTE(add), satisfies (CTE(add)−CTE1)(CTE(add)−CTE2)0, is distributed with variable additive density, ρ(z;add), in the first material layer and/or in the second material layer, with ρ(z;add) near the materials interface being relatively high (alternatively, relatively low) and ρ(z;add) in a region spaced apart from the interface being relatively low (alternatively, relatively high).
대표청구항▼
1. A thermal protection system that reduces a mismatch of coefficients of thermal expansion (“CTEs”) across an interface between first and second materials, the system comprising: a first material, having an undoped CTE value CTE1, the first material having distal and interface surfaces;a second mat
1. A thermal protection system that reduces a mismatch of coefficients of thermal expansion (“CTEs”) across an interface between first and second materials, the system comprising: a first material, having an undoped CTE value CTE1, the first material having distal and interface surfaces;a second material having an undoped CTE value CTE2 where CTE2 is greater than CTE1, the second material having distal and interface surfaces, wherein the interface surface of the second material is disposed adjacent to the interface surface of the first material;additive material particles having a CTE value CTE(add) dispersed within said first and second materials along a density gradient where the dispersion density of the additive material particles changes within the first and second materials from the distal surfaces to the interface surfaces, where (CTE(add)−CTE1)(CTE(add)−CTE2)99%, ≈0%, and ≈0% respectively, anda fifth configuration of aluminum borosilicate with a representative composition of Al2O3, SiO2, and B2O3 having mass fractions of 85%, 15%, and 10% respectively. 8. A thermal protection system that reduces a mismatch of coefficients of thermal expansion (“CTEs”) across an interface between first and second materials, the system comprising: a first material, having an undoped CTE value CTE1, the first material having distal and interface surfaces;a second material having an undoped CTE value CTE2 where CTE2 is greater than CTE1, the second material having distal and interface surfaces, wherein the interface surface of the second material is disposed adjacent to the interface surface of the first material;additive material particles having a CTE value CTE(add) dispersed within said first and second materials along a density gradient where the dispersion density of the additive material particles changes within the first and second materials from the distal surfaces to the interface surfaces, where (CTE(add)−CTE1)(CTE(add)−CTE2)99%, ≈0%, and ≈0% respectively, anda fifth configuration of aluminum borosilicate with a representative composition of Al2O3, SiO2, and B2O3 having mass fractions of 85%, 15%, and 10% respectively.
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이 특허에 인용된 특허 (15)
Ray Siba P. (Plum Boro PA), Aluminum borate based ceramic composite.
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Everitt George F. (St. Paul MN) Johnson Terence P. (St. Paul MN) Pham Lien-Huong A. (St. Paul MN), Oxidation resistant alumina-silica articles containing silicon carbide and carbon.
Everitt George F. (Lake Elmo MN) Johnson Terence P. (Hastings MN) Pham Lien-Huong T. (Saint Paul MN), Oxidation resistant carbon containing alumina-silica articles.
Fletcher ; James C. Administrator of the National Aeronautics and Space ; Administration ; with respect to an invention of ; Goldstein ; Howard E. ; Leiser ; Daniel B. ; Katvala ; Victor W., Reaction cured glass and glass coatings.
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