Characterization and control of the fiber-matrix interface in ceramic ...

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208 203 - 204. 20s. 206 - 207. 208. 209 - 210. 211. 212. 213- 214. 215 - 216. 217. W. R. GRACE & COMPANY, 7379 Route 32, Columbia, MD 21044 W. R. Rice J. P. Skalny WESTINGHOUSE ELECTRIC CORPORATIONl Research and Development Center, 1310 Beulah Road, Pittsburgh, PA 15235 R. J. Bratton WILLIAMS INTERNATIONAL CORPORATION, 2280 West Maple Road, Walled Lake, MI 48088 William Chapman Peter Nagy DOE, ENERGY CONVERSION & UTILIZATION TECHNOLOGIES DIVISION, Route Symbol CE-142, Forrestal Building, Washington, DC 20545 J . J . Eberhardt DOE, MORGANTOWN ENERGY TECHNOLOGY CENTER, P.O. Box 880, Morgantown, WV 26505 D. Dubis J. S. Wilson DOE, OFFICE OF BASIC ENERGY SCIENCESl Division of Materials Sciences, ER-131, GTN, Washington, DC 20545 R. J. Gottschall DOE, OFFICE OF FOSSIL ENERGY, FE-14, Mail Stop B127, GTN, Washington, DC 20545 F. M. Glaser DOE, OFFICE OF VEHICLE AND ENGINE RESEARCH AND DEVELOPMENT, Forrestal Building, 1000 Independence Avenue, Washington, DC 20585 A. A. Chesnes R. B. Schulz DOE, U.S. DEPARTMENT OF ENERGY, 1000 Independence Ave., Washington, DC 20585 S . L. Richlen, CE-141 S. M. Wolf, CE-12 DOE, PITTSBURGH ENERGY TECHNOLOGY CENTER, P.O. Box 10940, Pittsburgh, PA 15236 S. W. Chun
209 218. DOE, OAK RIDGE OPERATIONS, P.O. Box 2001, Oak Ridge, TN 37831-8600 Office of Assistant Manager for Energy Research and Development 219-228. DOE, OFFICE OF SCIENTIFIC AND TECHNICAL INFORMATION, Office of Information Services, P.O. Box 62, Oak Ridge, TN 37831 For distribution by microfiche as shown in DOE/TIC-4500, Distribution Categories UC-103 (Fluidized Bed Combustion), UC-105 (Flue Gas Cleanup), UC-106 (Gas Stream Cleanup), UC-108 (Coal Liquefaction), UC-109 [Coal Gasificati.on (Surface and Underground)], UC-110 (Fuel Cells), UC-1-11 (Heat Engines), and UC-114 (Coal Based Materials and Components).
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ORNL/TM-11039 Metals and Ceramics D
Page 6 and 7:
Page 9.3 Composite Fabrication . .
Page 9:
LIST OF TABLES Table Page 5,l. Prop
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Figure 8.3. 9.1.. 9.2. 9.3. 9.4. 9.
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Figure 10.18. 10.19. 10.20. 10. 21.
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ACKNOWLEDGMENTS The author wishes t
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CWCTERIZATION AND CONTROL OF THE FI
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1. INTRODUCTION During the last sev
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The development of low-density, hig
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3. FABRICATION TECHNIQUES 3.1 Intro
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11 isostatic pressing (HIP), can be
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13 utilizing the comparatively low-
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16 ORN L- DWG 85- 4 i 4 18RS HEAT1
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5. COMPOSITE DESIGN 5.1 Introductio
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21 5,2 Mechanical Considerations Th
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23 GRNL-DWG 88-74 26 Figure 5.1. Th
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25 Equation (6) shows that the stre
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27 of reinforcement. There are two
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29 in strength. Conversely, the fib
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-I_- Table 5.2. Thermally induced a
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33 1.2 ID 0.8 ;.r 1 e fi v 0.6 a4 Q
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35 will affect the interface and, t
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38 fiber-matrix bonding; thus, a fu
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40 In the analysis of the mechanica
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42 1.2 I .o .6 - E f aa '3 0.6 cn 3
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44 will result in the matrix being
Page 64 and 65:
I I MATRIX MATRIX Figure 7.1. Schem
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48 F = 2a2H, where H is the hardnes
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50 OWL-PHOTO 6866-86 i d c I 20pm F
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52 where Af is the surface area of
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54 Figure 7.4. Tensile and shear st
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56 I I I / -c rc -c / . Om / / I /
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58 ORNL-OWG 87-i 8234 F Figure 7.7.
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coating and the distribution of she
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62 O m PHOTO 6676-87 i SIC FIBERS -
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the composite, therefore an interme
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methane as the reactant and is, thu
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9. EXPERIMENTAL PROCEDURES 9.1 Depo
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71 furnace. The furnace is, therefo
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73 further protection. A 6.5-cm-dia
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76 of the specimen slowly decreased
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78 The programmer is also equipped
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80 graphite holders through multipl
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82 temperature by simply switching
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84 ORNk DWG 87- 4494 3 METAL LOGR A
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86 9.5 Fracture Surface Analvsis Th
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88 treated and untreated halves wer
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90 9.8.2 Tensile testinq In an init
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92 ORNL-DUG 85-11767R.2 ? ! 2 f CEN
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94 fracture of individual Nicalon f
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96 Figure 10.1. SiC-infiltrated Nic
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99 compared with the dimensions acq
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101 Table 10.3. Strength and modulu
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100 ORNL- DWG 87-1 6292 R CVI-I73 7
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BULK FIBER SAMPLE NO. 173: FIBER SU
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107 similar samples show the film o
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Figure 10.7. SEM micrographs showin
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111 Table 10.4. Thermochemical eval
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100 ORNL-DUG 87-15969R CVI- 170 75
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115 Analysis conversion of of the m
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117 A 1 I S N 31 N I I'd I LN 3H 3
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119 n 0 W n 9 v P n w- n v
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121 s m f c I m z - Ir 2 a 0 9 In u
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Figure 10.14. SEM micrographs of in
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J ORNL-DWC 88-6289 z cF u) w I- z O
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127 300 I CVI-480 I I 1 0 R N L-DWG
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io0 I I I I CVI- 172 75 - - 0 z v -
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131 RAL 033021 RAL 033023 Figure 10
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133 include: the reaction of boron
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136 that BN coatings react with the
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75 7 ORNL-DWG 87-48234 50 - - c5 z
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140 Table 10.9. Thermochemical eval
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OANL-bwo 88-9025 ORNL-DWG 66-9027 I
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144 uncoated tows were 14 k 2 pm; t
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11. DISCUSSION 11.1 Constituent Pro
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149 The properties of CVD Sic have
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151 11.2.1 Matrix cracking In the N
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153 OWL-DWG 88-10677 CVI- (78 22 I
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155 Table 11.3. Property comparison
Page 175 and 176: 157 a f ““f f- L c I Figure 11.
Page 177 and 178: 159
Page 179 and 180: 161 The equations demonstrate that
Page 181 and 182: 163 calculations of the matrix depo
Page 183 and 184: 165 In four of the samples, the fib
Page 185 and 186: 167 Table 11.4. Properties of glass
Page 187 and 188: 169 rare-earth magnets and coils to
Page 189 and 190: 171 stress fields along the fiber i
Page 191 and 192: 173 11.3.2 Tensile testinp, The use
Page 193 and 194: 17 5 contraction have been ignored,
Page 195: 177 the system, and when the result
Page 198 and 199: 180 reduces fiber strength. The str
Page 200 and 201: 182 15. R. A. J. Sambell, D. H. Bow
Page 202 and 203: 184 41. A. J. Caputo et al., "Fiber
Page 204 and 205: 186 71, N. F. DOW, Study of Stresse
Page 206 and 207: 188 98. M. H. Rawlins et al., "Inte
Page 208 and 209: 190 125. R. Warren and C-H. Anderss
Page 210 and 211: 192 155. M. F. Doerner and W, D. Ni
Page 213 and 214: APPENDIX A. AUGER ELECTRON SPECTROS
Page 215: APPENDIX B DETAILS OF THE FIBER-SHE
Page 218 and 219: 200 Those for the fiber (primed) ar
Page 220 and 221: 202 89-92. 93. 94. 95" 96. 97. 98-9
Page 222 and 223: 204 130-133. E. I. DUPONT DE NEMOUR
Page 224 and 225: 206 173. NATIONAL ACADEMY OF SCIENC
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