T Nozawa et aL/Joumal of Nuclear Materials 384(2009)195-211 Push-out test results for as-received and irradiated Sic/siC composites. Interphase 2871(882) 895(892) Non-irradiated (batch #2) 如Gm 0. dpa380°C(HFR-FUN) 312 18dpa380°(HFR-FUN) 520(26 842(400 1055(245) 7.7dpa8oo°(HFR-14 1186(199) 1189(198 467(311) 3544(498) Multilayer 3085(835) 085(835) 3554(1 07dpa740°c(HFR-NER) 974(1027) 3078(1472) 07dpa1030°(HFR-NER) 2 4985(180) 3.7dpa640°C( HFIR-NER) 23(932 70(650) 2619(536) 4.2 dpa 1080"C(HFIR-NERI 2016(62) 7.7dpa800°(HHR-14 2223(472) 3040(83 2550(58 2982(536 Note: Numbers in parenthesis indicate one standard deviation. Table 5 terfacial shear properties of as-received and irradiated SiC/SiC composites. radiation campaig Irradiation condition Interfacial friction st one(batch #2) FIR-FUN 8dpa380°C +16 FIR-FUN 97(14) 32(8) HFIR- 7.7dpa800° 148( 185(1 24 56(6) 338(45) 4(46) 267(18) 279(44) 215(49) HFIR-NERI 270(27) 81(2) HFIR-14 277(30) 329(29) 111(24) ote: Numbers in parenthesis indicate one standard deviation.Table 4 Push-out test results for as-received and irradiated SiC/SiC composites. Interphase Irradiation condition Sample thickness (lm) Debond initiation stress (MPa) Sliding stress (MPa) # of valid tests Monolayer Non-irradiated (batch #1) 50 2871 (882) 2895 (892) 22 100 2611 (1033) 3351 (1071) 33 200 2875 (734) – 18 Non-irradiated (batch #2) 50 891 (423) 910 (440) 22 100 1576 (619) 2071 (911) 31 200 1870 (537) 4049 (917) 33 0.8dpa 380 C (HFIR-FUN) 53 1892 (642) 1965 (715) 23 120 2458 (1168) 3362 (1415) 45 153 3170 (886) 4238 (696) 24 189 1940 (732) 2837 (1186) 13 212 2645 (954) 4091 (891) 50 1.8dpa 380 C (HFIR-FUN) 58 863 (307) 1059 (398) 14 87 1520 (265) 1646 (361) 30 114 842 (400) 910 (457) 74 145 1055 (245) 1155 (278) 22 7.7 dpa 800 C (HFIR-14J) 40 1186 (199) 1189 (198) 16 80 1467 (311) 1712 (396) 23 118 1680 (426) 2821 (823) 24 210 1702 (284) 3544 (498) 10 Multilayer Non-irradiated 30 3085 (835) 3085 (835) 5 50 3554 (1090) 4205 (1107) 12 100 3518 (680) – 18 200 3355 (830) – 16 0.7 dpa 740 C (HFIR-NERI) 25 3006 (963) – 49 100 2974 (1027) – 22 137 3078 (1472) – 26 154 3323 (654) – 22 0.7 dpa 1030 C (HFIR-NERI) 100 2198 (1119) – 26 150 3056 (773) 4985 (180) 25 185 2155 (735) – 25 3.7 dpa 640 C (HFIR-NERI) 40 2457 (982) 2870 (650) 17 165 2836 (732) – 24 190 2619 (536) – 24 4.2 dpa 1080 C (HFIR-NERI) 75 1789 (402) 2016 (62) 28 150 2124 (692) – 30 210 2098 (375) – 28 7.7 dpa 800 C (HFIR-14J) 60 2188 (399) 2223 (472) 21 90 3040 (839) – 18 120 2550 (585) – 33 220 2982 (536) – 22 Note: Numbers in parenthesis indicate one standard deviation. Table 5 Interfacial shear properties of as-received and irradiated SiC/SiC composites. Interphase Irradiation campaign Irradiation condition Interfacial debond shear strength Interfacial friction stress High-density PyC case Low-density PyC case ss (MPa) Dss (%) ss (MPa) Dss (%) sf (MPa) Dsf (%) Monolayer None (batch #1) – 234 (45) – 311 (47) – 115 (21) – None (batch #2) – 125 (35) – 172 (27) – 61 (1) – HFIR-FUN 0.8 dpa 380 C 208 (36) +16 267 (35) +10 63 (8) 28 HFIR-FUN 1.8 dpa 380 C 97 (14) 46 165 (15) 32 32 (8) 64 HFIR-14 J 7.7 dpa 800 C 148 (15) 18 185 (14) 24 56 (6) 36 Multilayer None – 338 (45) – 424 (46) – 267 (18) – HFIR-NERI 0.7 dpa 740 C 330 (51) 2 402 (51) 5 >210 <21 HFIR-NERI 0.7 dpa 1030 C 240 (51) 29 320 (50) 25 100 (3) 63 HFIR-NERI 3.7 dpa 640 C 279 (44) 17 346 (43) 18 215 (49) 19 HFIR-NERI 4.2 dpa 1080 C 201 (28) 41 270 (27) 36 81 (2) 70 HFIR-14J 7.7 dpa 800 C 277 (30) 18 329 (29) 22 111 (24) 58 Note: Numbers in parenthesis indicate one standard deviation. 202 T. Nozawa et al. / Journal of Nuclear Materials 384 (2009) 195–211