CN103224391B - Multi-component stable thermal-corrosion-resistant zirconia coat material - Google Patents

Multi-component stable thermal-corrosion-resistant zirconia coat material Download PDF

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CN103224391B
CN103224391B CN201310095246.7A CN201310095246A CN103224391B CN 103224391 B CN103224391 B CN 103224391B CN 201310095246 A CN201310095246 A CN 201310095246A CN 103224391 B CN103224391 B CN 103224391B
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corrosion
heat resistant
coated material
stabilizing zirconia
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CN103224391A (en
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华云峰
王彦峰
王宝云
李争显
杜继红
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Northwest Institute for Non Ferrous Metal Research
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Northwest Institute for Non Ferrous Metal Research
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Abstract

The invention provides a multi-component stable thermal-corrosion-resistant zirconia coat material. The coat material is obtained through mixing a main agent with a stabilizer and carrying out ball milling, the main agent is ZrO2, the stabilizer is a mixture of Ta2O5, In2O3, Al2O3 and TiO2, the molar ratio of Ta2O5: In2O3: Al2O3: TiO2: ZrO2 in the multi-component stable thermal-corrosion-resistant zirconia coat material is x:x:x:x:(100-4x), and x is not greater than 4 and not lower than 2. Tetragonal phase ZrO2 is finally obtained through adopting Ta2O5, In2O3, Al2O3 and TiO2 as the stabilizer to stabilize ZrO2 in the invention. The multi-component stable thermal-corrosion-resistant zirconia coat material has an excellent Na2SO4-V2O5 molten salt corrosion resistance, and an excellent calcium magnesium aluminosilicate molten glass corrosion resistance.

Description

A kind of polynary stabilizing zirconia corrosion and heat resistant coated material
Technical field
The invention belongs to corrosion and heat resistant coated material technical field, be specifically related to a kind of polynary stabilizing zirconia corrosion and heat resistant coated material.
Background technology
YSZ thermal barrier coating (adopts Y 2o 3stable ZrO 2) there is high-melting-point, low heat conduction coefficient (its heat-conduction coefficient is 2W/mk～3W/mk), (its fracture toughness property is 6MPam to high-fracture toughness -1/2～9MPam -1/2) and high thermal expansion coefficient (its thermal expansivity is 9 × 10 -6k -1～11 × 10 -6k -1, mate with superalloy) etc. excellent over-all properties, be widely used at present the thermal barrier coating of turbine blade of aircraft engine and internal combustion turbine.
The thermal etching that thermal barrier coating faces in process under arms comprises: (1) Na 2sO 4-V 2o 5fused salt corrosion; (2) calcium zeopan melten glass corrosion.
Na 2sO 4-V 2o 5the Mechanism of Hot Corrosion of fused salt is: in low-quality fuel, conventionally contain Na, V impurity, under high temperature combustion environment, these impurity form Na 2sO 4-V 2o 5fused salt, and be attached to blade thermal barrier coating surface.Na 2sO 4-V 2o 5fused salt and thermal barrier coating stablizer Y 2o 3there is chemical reaction and generate YVO 4, cause Tetragonal ZrO 2(be t-ZrO 2) become mutually monoclinic phase ZrO 2(be m-ZrO 2), 3%～5% volumetric expansion is followed in phase transformation; The corrosion product YVO that reaction generates 4also can in Thermal Cycling, produce destruction to thermal barrier coating mutually, cause thermal barrier coating cracking and unsticking to lose efficacy.
The Mechanism of Hot Corrosion of calcium zeopan is: the deposition of airborne sand particulate on blade will form calcium zeopan, and calcium zeopan will dissolve ZrO 2crystal grain, infiltrates to blade matrix and with it and reacts; Thermal barrier coating by the brine corrosion of calcium magnesium alumino metasilicate has lower mechanical property, and chemical reaction and Thermal-mechanical Coupling effect finally cause thermal barrier coating to lose efficacy.
At present, the method for raising thermal barrier coating corrosion and heat resistant has: (1) coatingsurface processing; (2) apply coating; (3) adopt other stablizers to replace Y 2o 3.
Document 1(C.Batista, A.Portinha, R.M.Ribeiro, et al.Evaluation of laser-glazed plasma-sprayed thermal barrier coatings under high temperature exposure to molten salts.Surface and Coatings Technology, 2006,200:6783-6791) research adopts the processing of laser remolten face seal to improve the anti-Na of thermal barrier coating 2sO 4-V 2o 5fused salt corrosion performance.But surface treatment can not reduce crack density and change material character, does not obviously improve the thermal barrier coating corrosion and heat resistant life-span.
Document 2(publication number is the patent of invention " a kind of oceanic atmosphere corrosion resistant thermal barrier coating " of CN 1635178A) by applying Al on YSZ surface 2o 3coating improves the anti-Na of thermal barrier coating 2sO 4-V 2o 5fused salt corrosion performance.Document 3(C.Ramachandra, K.N.Lee, S.N.Tewari, et al.Durability of TBCs with a surface environmental barrier layer under thermal cycling in air and in molten salt.Surface and Coatings Technology, 2003,172:150-157) to adopt plasma spraying BAS(be BaOAl in research 2o 32SiO 2) and Mullite(be 3Al 2o 32SiO 2) coating improves the anti-Na of thermal barrier coating 2sO 4-V 2o 5fused salt corrosion performance.Document 4(X.L.Chen, Y.Zhao, L.J.Gu, et al.Hot corrosion behaviour of plasma sprayed YSZ/LaMgAl 11o 19composite coatings in molten sulfate – vanadate salt.Corrosion Science, 2011,53:2335-2343) research applies LaMgAl 11o 19coating improves the anti-Na of thermal barrier coating 2sO 4-V 2o 5fused salt corrosion performance.But, because causing applying coating, the coefficient of thermal expansion differences of coating there is crackle, Na 2sO 4-V 2o 5fused salt by crackle expand infilter into thermal barrier coating and with stablizer Y 2o 3react, cause thermal barrier coating phase transformation to be lost efficacy.Therefore, document 2 to document 4 applies after coating, does not obviously improve the corrosion and heat resistant life-span of thermal barrier coating.
Document 5(S.Raghavan, M.J.Mayo.The hot corrosion resistance of 20mol% YTaO 4stabilized tetragonal zirconia and 14mol% Ta 2o 5stabilized orthorhombic zirconia for thermal barrier coating applications.Surface and Coatings Technology, 2002,160:187-196) research employing 10mol%Y 2o 3, 10mol% Ta 2o 5and 14mol% Ta 2o 5as ZrO 2stablizer, make anti-Na 2sO 4-V 2o 5fused salt corrosion performance is improved.But this stablizer can not make the crystallization of calcium zeopan, anticalcium zeopan corrosive nature is poor.
Document 6(publication number is patent of invention " a kind of Yb of CN 101012123A 2o 3and Gd 2o 3the high coefficient of thermal expansion heat barrier coat material of doping YSZ ") introduce a kind of Yb 2o 3and Gd 2o 3the coated material of doping YSZ.Stablizer Y 2o 3with doping agent Yb 2o 3, Gd 2o 3capital and Na 2sO 4and V 2o 5fused salt reacts, the anti-fused salt corrosion poor performance of this coated material.
Document 7(publication number is the patent of invention " multi-element co-stabilizing zirconia of heat barrier coat material and preparation method " of CN 101397214A) introduce a kind of 8mol%～9mol%Y 2o 3, 8mol%～9mol%Nb 2o 5(or Ta 2o 5) and 0.1mol%～3mol%Nd 2o 3(or Sm 2o 3, or Gd 2o 3, or La 2o 3) as the coated material of stablizer.Y 2o 3, Ta 2o 5, Nd 2o 3(or Sm 2o 3, or Gd 2o 3, or La 2o 3) etc. stablizer and Na 2sO 4-V 2o 5molten salt react ion, causes fused salt to infiltrate along thermal barrier coating, reacts thermal barrier coating unsticking was lost efficacy with tack coat.
Document 8 (A.Aygun, A.L.Vasiliev, N.P.Padture, et al.Novel thermal barrier coatings that are resistant to high-temperature attack by glassy deposits.Acta Materialia, 2007,55:6734-6745) employing solid solution 20mol%Al in 7wt%YSZ matrix 2o 3and 5mol%TiO 2improve anticalcium zeopan glass corrosion performance.With respect to 7wt%YSZ, the calcium zeopan glass corrosion performance that the anti-deposition sand of this coated material forms improves approximately 4 times.But this coated material adopts Y 2o 3as stablizer, its anti-Na 2sO 4-V 2o 5fused salt corrosion poor performance.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, and a kind of excellent anti-Na that not only has is provided 2sO 4-V 2o 5fused salt corrosion performance, and there is the polynary stabilizing zirconia corrosion and heat resistant coated material of excellent anticalcium zeopan melten glass corrosive nature.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of polynary stabilizing zirconia corrosion and heat resistant coated material, it is characterized in that, and formed by host and stablizer mixing and ball milling, described host is ZrO 2, described stablizer is Ta 2o 5, In 2o 3, Al 2o 3and TiO 2mixture, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be x: x: x: x: (100-4x), wherein x meet: 2≤x≤4.
The polynary stabilizing zirconia corrosion and heat resistant of above-mentioned one coated material, is characterized in that, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be 3: 3: 3: 3: 88.
The polynary stabilizing zirconia corrosion and heat resistant of above-mentioned one coated material, is characterized in that, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be 3.5: 3.5: 3.5: 3.5: 86.
The polynary stabilizing zirconia corrosion and heat resistant of above-mentioned one coated material, is characterized in that, the speed of described ball milling is 100r/min～400r/min, and the time of described ball milling is 1h～4h.
Adopt plasma spray coating process or electro beam physics vapour deposition technique to prepare polynary stabilizing zirconia corrosion and heat resistant coating polynary the present invention stabilizing zirconia corrosion and heat resistant coated material.The principle of work that plasma spraying is prepared polynary stabilizing zirconia corrosion and heat resistant coating is: plasma gun forms high temperature and high speed plasma jet, powder feeding air-flow promotes the polynary stabilizing zirconia corrosion and heat resistant of the present invention coated material and enters after plasma jet, the polynary stabilizing zirconia corrosion and heat resistant of the present invention coated material is rapidly heated to melting or semi-melting state, and accelerated by plasma jet, the spraying particle bundle of base material is flown in formation, host (ZrO in particle beam 2) and stablizer (Ta 2o 5, In 2o 3, Al 2o 3with TiO 2) between spread, form Ta 2o 5, In 2o 3, Al 2o 3with TiO 2impurity ZrO 2particle beam, particle beam strikes through pretreated substrate surface, finally forms Ta 2o 5, In 2o 3, Al 2o 3with TiO 2polynary stabilizing zirconia (Tetragonal and metastable tetragonal zirconia phase) corrosion and heat resistant coating.The principle of work that electro beam physics vapour deposition is prepared polynary stabilizing zirconia corrosion and heat resistant coating is: polynary the present invention stabilizing zirconia material is made to base substrate through isostatic cool pressing, and then in the retort furnace of 1600 DEG C, sintering 4h makes Ta 2o 5, In 2o 3, Al 2o 3with TiO 2polynary stabilizing zirconia (Tetragonal and metastable tetragonal zirconia phase) target, afterwards target is put into electro beam physics vapour deposition equipment (the L2 type electro beam physics vapour deposition equipment of manufacturing as Russian electromechanical stock company, for this type equipment, target is of a size of Φ 70mm × 100mm) in crucible, high-power electron beam (beam power of L2 type electro beam physics vapour deposition equipment is 60KW) melts target, target evaporates, the target atom of evaporation deposits to target top through pretreated substrate surface, finally forms Ta 2o 5, In 2o 3, Al 2o 3with TiO 2polynary stabilizing zirconia (Tetragonal and metastable tetragonal zirconia phase) corrosion and heat resistant coating.
The present invention compared with prior art has the following advantages:
1, the present invention adopts Ta 2o 5, In 2o 3, Al 2o 3and TiO 2stablize ZrO as stablizer 2, finally obtain t-ZrO 2.Due to Ta 5+, Al 3+and Ti 4+ionic radius be less than Na 2sO 4-V 2o 5v in fused salt 5+ionic radius, and Ta 5+with In 3+defect combined action increased In 2o 3anti-Na 2sO 4-V 2o 5fused salt corrosion performance, therefore stabilizer T a 2o 5, In 2o 3, Al 2o 3and TiO 2all and Na 2sO 4-V 2o 5fused salt is difficult to occur chemical reaction.So the polynary stabilizing zirconia corrosion and heat resistant of the present invention coated material has excellent anti-Na 2sO 4-V 2o 5fused salt corrosion performance, at 950 DEG C, 70mg/cm 2the Na of concentration 2sO 4-V 2o 5in fused salt, carry out corrosion resistance test, result shows the anti-Na of the polynary stabilizing zirconia corrosion and heat resistant of the present invention coated material 2sO 4-V 2o 5the fused salt corrosion life-span has improved more than 11 times than traditional YSZ coated material.
2, the present invention adopts Ta 2o 5, In 2o 3, Al 2o 3and TiO 2stablize ZrO as stablizer 2, finally obtain t-ZrO 2.Due to Ta 5+, Al 3+and Ti 4+ionic radius less, valence state is higher, and has higher field intensity, can improve the calcium zeopan viscosity that deposition sand forms; Meanwhile, TiO 2can promote to deposit as glass nucleating agent the calcium zeopan crystallization that sand forms; Above two kinds of effects, by causing the calcium zeopan crystallization and freezing of melting, can not continue to infiltrate coating again.So the polynary stabilizing zirconia corrosion and heat resistant of the present invention coated material has the calcium zeopan corrosive nature that excellent anti-deposition sand forms.At 1100 DEG C, 65mg/cm 2in the calcium zeopan of concentration, carry out the test of anticalcium zeopan melten glass corrosive nature, result shows that the anticalcium zeopan melten glass corrosion life of the polynary stabilizing zirconia corrosion and heat resistant of the present invention coated material has improved more than 6 times than traditional YSZ coated material.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is the X-ray diffraction spectrogram correlation curve of more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention and comparative example 1YSZ corrosion and heat resistant coated material.
Fig. 2 is that more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention is through 24hNa 2sO 4-V 2o 5after fused salt corrosion and comparative example 1YSZ corrosion and heat resistant coated material through 2hNa 2sO 4-V 2o 5x-ray diffraction spectrogram correlation curve after fused salt corrosion.
Fig. 3 is that more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention is through 24hNa 2sO 4-V 2o 5surface topography stereoscan photograph after fused salt corrosion.
Fig. 4 is that comparative example 1YSZ corrosion and heat resistant coated material of the present invention is through 2h Na 2sO 4-V 2o 5surface topography stereoscan photograph after fused salt corrosion.
Fig. 5 is that more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention is the section microstructure after the corrosion of 20h calcium zeopan melten glass under the condition of 1100 DEG C in temperature.
Fig. 6 is that comparative example 1YSZ corrosion and heat resistant coated material of the present invention is the section microstructure after the corrosion of 20h calcium zeopan melten glass under the condition of 1100 DEG C in temperature.
Embodiment
Embodiment 1
The polynary stabilizing zirconia corrosion and heat resistant of the present embodiment coated material is formed by host and stablizer mixing and ball milling, and described host is ZrO 2, described stablizer is Ta 2o 5, In 2o 3, Al 2o 3and TiO 2mixture, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be 3: 3: 3: 3: 88; The speed of described ball milling is 200r/min, and the time of described ball milling is 3h.
Embodiment 2
The polynary stabilizing zirconia corrosion and heat resistant of the present embodiment coated material is formed by host and stablizer mixing and ball milling, and described host is ZrO 2, described stablizer is Ta 2o 5, In 2o 3, Al 2o 3and TiO 2mixture, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be 3.5: 3.5: 3.5: 3.5: 86; The speed of described ball milling is 300r/min, and the time of described ball milling is 2h.
Embodiment 3
The polynary stabilizing zirconia corrosion and heat resistant of the present embodiment coated material is formed by host and stablizer mixing and ball milling, and described host is ZrO 2, described stablizer is Ta 2o 5, In 2o 3, Al 2o 3and TiO 2mixture, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be 4: 4: 4: 4: 84; The speed of described ball milling is 250r/min, and the time of described ball milling is 2.5h.
Embodiment 4
The polynary stabilizing zirconia corrosion and heat resistant of the present embodiment coated material is formed by host and stablizer mixing and ball milling, and described host is ZrO 2, described stablizer is Ta 2o 5, In 2o 3, Al 2o 3and TiO 2mixture, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be 2: 2: 2: 2: 92; The speed of described ball milling is 400r/min, and the time of described ball milling is 1h.
Embodiment 5
The polynary stabilizing zirconia corrosion and heat resistant of the present embodiment coated material is formed by host and stablizer mixing and ball milling, and described host is ZrO 2, described stablizer is Ta 2o 5, In 2o 3, Al 2o 3and TiO 2mixture, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be 2.5: 2.5: 2.5: 2.5: 90; The speed of described ball milling is 100r/min, and the time of described ball milling is 4h.
Comparative example 1
This comparative example adopts Y 2o 3and ZrO 2according to the quality of 8: 92, than mixing and ball milling, ball milling speed was 200r/min, and Ball-milling Time is 3h, obtained YSZ corrosion and heat resistant coated material.
More than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention and comparative example 1YSZ corrosion and heat resistant coated material are all pressed into the base substrate that is of a size of Φ 12mm × 2mm, be sintering 4 hours in the retort furnace of 1600 DEG C in temperature again, carry out afterwards hot corrosion resistance contrast test, concrete testing method and test result are as follows:
One, anti-Na 2sO 4-V 2o 5fused salt corrosion performance test
By Na 2sO 4and V 2o 5than mixing and ball milling, obtain Na according to the quality of 3: 2 2sO 4-V 2o 5mixed powder.Respectively by Na 2sO 4-V 2o 5mixed powder is coated to more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material surface of embodiment, and comparative example 1YSZ corrosion and heat resistant coated material surface, and Na 2sO 4-V 2o 5the coated weight of mixed powder is 70mg/cm 2, then will be coated with Na 2sO 4-V 2o 5the polynary stabilizing zirconia corrosion and heat resistant coated material of mixed powder and be coated with Na 2sO 4-V 2o 5it is the electric furnace of 950 DEG C that the YSZ corrosion and heat resistant coated material of mixed powder is placed in temperature simultaneously, makes Na 2sO 4-V 2o 5mixed powder is melt into Na under 950 DEG C of temperature condition 2sO 4-V 2o 5fused salt, thus polynary stabilizing zirconia corrosion and heat resistant coated material and YSZ corrosion and heat resistant coated material are carried out to anti-Na 2sO 4-V 2o 5fused salt corrosion test.
Fig. 1 is the X-ray diffraction spectrogram correlation curve of more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention and comparative example 1YSZ corrosion and heat resistant coated material.In Fig. 1, curve a is the X-ray diffraction spectrogram curve of more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention, and curve b is the X-ray diffraction spectrogram curve of comparative example 1YSZ corrosion and heat resistant coated material of the present invention.As shown in Figure 1, the ZrO in more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention and comparative example 1YSZ corrosion and heat resistant coated material 2be Tetragonal ZrO 2, i.e. t-ZrO 2.
Fig. 2 is that more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention is through 24hNa 2sO 4-V 2o 5after fused salt corrosion and comparative example 1YSZ corrosion and heat resistant coated material through 2hNa 2sO 4-V 2o 5x-ray diffraction spectrogram correlation curve after fused salt corrosion.In Fig. 2, curve c is that more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of embodiment is through 24hNa in temperature under the condition of 950 DEG C 2sO 4-V 2o 5x-ray diffraction spectrogram curve after fused salt corrosion, curve d is that comparative example 1YSZ corrosion and heat resistant coated material is through 2h Na in temperature under the condition of 950 DEG C 2sO 4-V 2o 5x-ray diffraction spectrogram curve after fused salt corrosion.
Fig. 3 is that more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention is through 24hNa 2sO 4-V 2o 5surface topography stereoscan photograph after fused salt corrosion.Fig. 4 is that comparative example 1YSZ corrosion and heat resistant coated material of the present invention is through 2h Na 2sO 4-V 2o 5surface topography stereoscan photograph after fused salt corrosion.
Known in conjunction with Fig. 1, Fig. 2 and Fig. 3, more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention is through 24h Na in temperature under the condition of 950 DEG C 2sO 4-V 2o 5only there is faint corrosion, t-ZrO in fused salt corrosion rear surface 2become mutually m-ZrO 2content be only 7%, and there is not considerable change in material surface pattern after faint corrosion.Known in conjunction with Fig. 1, Fig. 2 and Fig. 4, comparative example 1YSZ corrosion and heat resistant coated material is through 2h Na in temperature under the condition of 950 DEG C 2sO 4-V 2o 5there is obviously corrosion, t-ZrO in fused salt corrosion rear surface 2all become mutually m-ZrO 2(m-ZrO 2as shown in II in Fig. 4), corrosion generates corrosion product YVO 4(YVO 4as shown in I in Fig. 4), and the YVO generating 4pattern thick.Proved is invented the anti-Na of polynary stabilizing zirconia corrosion and heat resistant coated material thus 2sO 4-V 2o 5fused salt corrosion performance is obviously better than YSZ corrosion and heat resistant coated material, and the anti-Na of the polynary stabilizing zirconia corrosion and heat resistant of the present invention coated material 2sO 4-V 2o 5the fused salt corrosion life-span has improved more than 11 times than YSZ corrosion and heat resistant coated material.
Two, anticalcium zeopan melten glass corrosive nature test
By SiO 2, CaO, MgO, Al 2o 3, Na 2o, K 2o and Fe 2o 3according to the mixed in molar ratio ball milling of 50 ︰ 38 ︰ 5 ︰ 4 ︰ 1 ︰ 1 ︰ 1, obtain calcium zeopan glass powder.Respectively calcium zeopan glass powder is coated to more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material surface of embodiment, and comparative example 1YSZ corrosion and heat resistant coated material surface, and the coating amount of calcium zeopan glass powder is 65mg/cm 2; Then the YSZ corrosion and heat resistant coated material that is coated with the polynary stabilizing zirconia corrosion and heat resistant coated material of calcium zeopan glass powder and be coated with calcium zeopan glass powder is placed in to temperature simultaneously and is the electric furnace of 1100 DEG C, make calcium zeopan glass powder melted by heating under 1100 DEG C of temperature condition become calcium zeopan melten glass, thereby polynary stabilizing zirconia corrosion and heat resistant coated material and YSZ corrosion and heat resistant coated material are carried out to anticalcium zeopan melten glass corrosion test.
Fig. 5 is that more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention is the section microstructure after the corrosion of 20h calcium zeopan melten glass under the condition of 1100 DEG C in temperature.Fig. 6 is that comparative example 1YSZ corrosion and heat resistant coated material of the present invention is the section microstructure after the corrosion of 20h calcium zeopan melten glass under the condition of 1100 DEG C in temperature.In Fig. 5 and Fig. 6, I is calcium zeopan glass, and II is the coated material that occurs etching crack through the corrosion of calcium zeopan melten glass, and III is the coated material without melting calcium zeopan glass corrosion.
From Fig. 5 and Fig. 6, more than 1 yuan of stabilizing zirconia corrosion and heat resistant coated material of the embodiment of the present invention is that under the condition of 1100 DEG C, the depth of corrosion after the corrosion of 20h calcium zeopan melten glass is 18 μ m in temperature; Comparative example 1YSZ corrosion and heat resistant coated material is that under the condition of 1100 DEG C, the depth of corrosion after the corrosion of 20h calcium zeopan melten glass is 130 μ m in temperature.The anticalcium zeopan melten glass corrosive nature that proved is invented polynary stabilizing zirconia corrosion and heat resistant coated material thus is obviously better than YSZ corrosion and heat resistant coated material, and the anticalcium zeopan melten glass life-span of the polynary stabilizing zirconia corrosion and heat resistant of the present invention coated material has improved more than 6 times than YSZ corrosion and heat resistant coated material.
The above, be only preferred embodiment of the present invention, not the present invention imposed any restrictions.Every any simple modification of above embodiment being done according to invention technical spirit, change and equivalence change, and all still belong in the protection domain of technical solution of the present invention.

Claims (2)

1. a polynary stabilizing zirconia corrosion and heat resistant coated material, is characterized in that, is formed by host and stablizer mixing and ball milling, and described host is ZrO 2, described stablizer is Ta 2o 5, In 2o 3, Al 2o 3and TiO 2mixture, Ta in described polynary stabilizing zirconia corrosion and heat resistant coated material 2o 5, In 2o 3, Al 2o 3, TiO 2and ZrO 2mol ratio be 3: 3: 3: 3: 88 or 3.5: 3.5: 3.5: 3.5: 86.
2. the polynary stabilizing zirconia corrosion and heat resistant of one according to claim 1 coated material, is characterized in that, the speed of described ball milling is 100r/min～400r/min, and the time of described ball milling is 1h～4h.
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