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1、b=AC-2(LF?Microstructure and Properties of Alumina Based Ceramic CoresAC-2 for Single Crystal Blades,(tb,100095)X UE Ming, C AO La-mei ( Institute of Aeronautical M aterials, Beijing 100095, China)K1:/XL/AC-2h(L4MF,iki?。TVAC-2h(L8?AC-1。1oM:h(L;F;?;b=ms|: TG221+ . 1DSM: AcI|: 1001-4381 ( 2002) 04-003
2、3-02Abstract: The microstructure and the phase composition of alumina based ceramic cores AC-2 hasbeen studied by using SEM and X-ray diffraction methods, and the properties of the core w ere mea-sured at room and high tem perature. The results show that the com bined properties of the AC-2 a-lumina
3、 cores are superior to those of AC-1 coreKey words: alumina based ceramic core ; structure ; property ; hollow bladeS-b=h(LX|1,aSB1540 1580Hq/h(LAC-1,+_=P_VVQTd9,qv70% 1 。S=31,=4,1h?/VCz,iO#Hll+。NAC-1$7ZAC-2h(LT。AC-2h(L4?4ZSB。1V#ZEn5|x,1sYF4、94。|F,(,|!。|(L,EMFk( 1966-) ,o,=,:81Q23sQ( 100095)。* * * *
4、 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *(上接第 18页 )ID1 !,S,.(LppZ J.t, 1997, 3: 1.2 Takeuchi Y R, Kokini K. Th ermal fracture of m ultilayer ceramicth ermal barrier coatings C . J Eng fo r Gas Turbin es and Pow -er, ASM E, 1994, 116: 266.3 ,g.?M .:tb, 1994.6 C.
5、v, J.+.emM .b,-X,r.:S, 1989.7 ,f,c.?0+N/ J.S, 1993, 11 (1): 31.l: 2001-03-26; : 2001-08-27Te:( 1974-),3,pV,:v1( 100081)。 (上接第 29页)ID1 Hirschman K D, et al. Silicon-based visible ligh t emitting d e-vices integ rated into microelectronic circuits J. Natu re, 1996,384: 338- 341. 2 Canham L T. Silicon
6、quantum w ire array fab rication by electro-ch emical and ch emical dissolu tion of wafers J . Appl Ph ysLett, 1990, 57 ( 10): 1046- 1048.3 Jung K H, Shih S, Kw ong D L. Developments in luminescentporous Si J . J Electrochem Soc, 1993, 140 ( 10): 3046-3064.4 Sen S, Siejk a J, Sav tch ouk A, Lagowski
7、 J. Assessm en t of con-ditions influ encing porou s Si electro-luminescence J . J Elec-troch em Soc, 1997, 144 ( 6): 2230- 2233.:SE1S( 69971014, 60071006,69890221)l: 2001-07-30; : 2002-01-15Te:f( 1979-) ,3,V,1Z_8。:=Sv8( 250014)。* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
8、 * * * * * * * *(上接第 34页 )V2ACh(L1?1Table 2 M ain property comparison ofAC series ceramic corei?kAC-1 AC-2Fe20 /M Pa 9 12 9 11Fe20 /M Pa 25 29 20 28lqW/% 1. 5 1?6H1550 0. 5h /mm 0. 8 1. 6 0. 3 0. 7Fe1550 /M Pa 5 7 6 8。4Z: AC-2lq6hlm#V3M。3( 1) AC-2h?AC-1M1,F-4/,lq6A。( 2) AC-23MC?,+YlqFM。ID1 .S_b=+ J ., 1995, 5.2 .=h(LAC-1 J .,1997, 9.l: 2001-07-05; : 2001-12-12Te:( 1973- ) ,3,=,VY:/,Y:81Q1sQ( 100095)。37eks#Fn
