RU99114831A - PRODUCT WITH A HEAT-INSULATING LAYER EXPOSED TO A HOT GAS, AND ALSO A METHOD FOR PRODUCING IT - Google Patents

PRODUCT WITH A HEAT-INSULATING LAYER EXPOSED TO A HOT GAS, AND ALSO A METHOD FOR PRODUCING IT

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Publication number
RU99114831A
RU99114831A RU99114831/02A RU99114831A RU99114831A RU 99114831 A RU99114831 A RU 99114831A RU 99114831/02 A RU99114831/02 A RU 99114831/02A RU 99114831 A RU99114831 A RU 99114831A RU 99114831 A RU99114831 A RU 99114831A
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RU
Russia
Prior art keywords
oxide
product according
insulating layer
preceding paragraphs
base
Prior art date
Application number
RU99114831/02A
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Russian (ru)
Other versions
RU2218451C2 (en
Inventor
Вольфрам Бееле
Original Assignee
Сименс Акциенгезелльшафт
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Application filed by Сименс Акциенгезелльшафт filed Critical Сименс Акциенгезелльшафт
Publication of RU99114831A publication Critical patent/RU99114831A/en
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Publication of RU2218451C2 publication Critical patent/RU2218451C2/en

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Claims (14)

1. Изделие, подвергаемое воздействию горячего газа, содержащее металлическое основание (1), с которым связан керамический теплоизолирующий слой (4), содержащий триоксид или псевдотриоксид, отличающееся тем, что оксид имеет кристаллическую структуру пирохлора со структурной формулой A2B2O7.1. The product is exposed to hot gas, containing a metal base (1), which is associated with a ceramic insulating layer (4) containing trioxide or pseudotrioxide, characterized in that the oxide has a crystalline pyrochlore structure with the structural formula A 2 B 2 O 7 . 2. Изделие по п.1, у которого оксид представляет собой гафнат металла, цирконат металла или церат металла или смесь этих оксидов. 2. The product according to claim 1, in which the oxide is a metal hafnate, metal zirconate or metal cerate or a mixture of these oxides. 3. Изделие по п.2, у которого оксид содержит в качестве элемента для А лантан, алюминий и/или церий. 3. The product according to claim 2, in which the oxide contains as an element for A lanthanum, aluminum and / or cerium. 4. Изделие по п.3, у которого оксид содержит гафнат лантана. 4. The product according to claim 3, in which the oxide contains lanthanum hafnate. 5. Изделие, подвергаемое воздействию горячего газа, содержащее металлическое основание (1), с которым связан керамический теплоизолирующий слой (4), содержащий триоксид или псевдотриоксид, отличающееся тем, что оксид имеет кристаллическую структуру перовскита со структурной формулой АВО3, причем А обозначает иттербий, а В обозначает гафний или цирконий или А обозначает кальций, а В - гафний.5. The product is exposed to hot gas, containing a metal base (1), which is associated with a ceramic insulating layer (4) containing trioxide or pseudotrioxide, characterized in that the oxide has a crystalline perovskite structure with the structural formula ABO 3 , and A denotes ytterbium and B is hafnium or zirconium, or A is calcium and B is hafnium. 6. Изделие по одному из предыдущих пунктов, у которого между основанием (1) и теплоизолирующим слоем (4) образован связывающий слой (3), содержащий связывающий оксид. 6. The product according to one of the preceding paragraphs, in which a bonding layer (3) containing a bonding oxide is formed between the base (1) and the heat insulating layer (4). 7. Изделие по одному из пп.1-6, содержащее между основанием (1) и теплоизолирующим слоем (4) повышающий адгезию слой (2), образующий связывающий оксид. 7. The product according to one of claims 1 to 6, containing between the base (1) and the insulating layer (4) an adhesion-enhancing layer (2) forming a bonding oxide. 8. Изделие по одному из предыдущих пунктов, у которого связывающий оксид представляет собой оксид алюминия и/или оксид хрома. 8. The product according to one of the preceding paragraphs, in which the binder oxide is aluminum oxide and / or chromium oxide. 9. Изделие по одному из предыдущих пунктов, у которого оксид не имеет фазового превращения между комнатной температурой и максимально допустимой рабочей температурой, превышающей 1250oС.9. The product according to one of the preceding paragraphs, in which the oxide does not have a phase transformation between room temperature and the maximum allowable working temperature in excess of 1250 o C. 10. Изделие по одному из предыдущих пунктов, у которого оксид имеет температуру плавления свыше 2150oС.10. The product according to one of the preceding paragraphs, in which the oxide has a melting point in excess of 2150 o C. 11. Изделие по одному из предыдущих пунктов, у которого теплоизолирующий слой (4) имеет поры или другие объемные дефектные участки. 11. The product according to one of the preceding paragraphs, in which the insulating layer (4) has pores or other bulk defective areas. 12. Изделие по одному из предыдущих пунктов, у которого теплоизолирующий слой (4) имеет столбчатую микроструктуру, причем осевое направление кристаллитов перпендикулярно поверхности основания (1). 12. The product according to one of the preceding paragraphs, in which the insulating layer (4) has a columnar microstructure, and the axial direction of the crystallites is perpendicular to the surface of the base (1). 13. Изделие по одному из предыдущих пунктов, представляющее собой нагружаемый горячими газами конструктивный элемент двигателя внутреннего сгорания, в частности газовой турбины. 13. The product according to one of the preceding paragraphs, which is a structural element loaded with hot gases by an internal combustion engine, in particular a gas turbine. 14. Способ изготовления нагружаемого горячими газами изделия, содержащего металлическое основание (1), причем керамический теплоизолирующий слой (4) с триоксидом или псевдотриоксидом, имеющим кристаллическую структуру пирохлора со структурной формулой А2В2О7, наносят на основание (1) плазменным напылением или способом PVD, в частности способом электронно-лучевого PVD.14. A method of manufacturing a hot gas-loaded article containing a metal base (1), wherein a ceramic insulating layer (4) with a trioxide or pseudotrioxide having a crystalline structure of pyrochlore with the structural formula A 2 B 2 O 7 is applied to the base (1) by plasma spraying or by the PVD method, in particular by the electron beam PVD method.
RU99114831/02A 1996-12-10 1997-11-26 Article with heat-insulating layer subjected to action of hot gas and method of manufacture of such article RU2218451C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19651273.5 1996-12-10
DE19651273 1996-12-10

Publications (2)

Publication Number Publication Date
RU99114831A true RU99114831A (en) 2001-07-10
RU2218451C2 RU2218451C2 (en) 2003-12-10

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Application Number Title Priority Date Filing Date
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Country Status (7)

Country Link
US (2) US6319614B1 (en)
EP (1) EP0944746B1 (en)
JP (1) JP3943139B2 (en)
KR (1) KR100611136B1 (en)
DE (1) DE59703975D1 (en)
RU (1) RU2218451C2 (en)
WO (1) WO1998026110A1 (en)

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