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ANP PROJECT PROGRESS REPORT which the infrared spectrometer is used, is presented here. The infrared spectra of polystyrene, polyethylene, polybutadiene, GR-S, natural rubber, deproteinized rubber, polyvinyl chloride, and Teflon have been measured before and after irradiation. The con- ditions of irradiation of these materials and some others which were not studied so thoroughly after irradiation are given in Table 4.2.4. The polymer films were cemented on a 2.9 x 1.1 cm rectangular aluminum wire frame, evacuated for 2 to 5 hr, and then measured to provide a preirradiation spectrum. The films to be irradiated in vacuum were evacuated for three to five days at 0.2 p and sealed in vacuum in pyrex or quartz tubes prior to irradiation. These sample tubes Polymer Polystyreneu 11 Polyalphamethyl styreneu 0.39, 6.9 PolyethyleneC 0.39, 3.9 Pol ybutad i one e GR-s e 0.72, 6.5 Natural (Hevea) rubbere Extracted Heveae Polyvinyl chloridee 0.39, 0.72, 3.9 Polymethyl methacrylateC 0.39, 6.9 Teflong 0.72 Mylarg 0.39, 6.9 Nylong resin No. 63 0.72 ~~ TABLE 4.2.4. IRRADIATION DOSAGES OF POLYMERS were packed with aluminum foil in aluminum cans for irradiation. The polymers were irradiated in one or more of the following facilities: (1) a Cod' gamma-ray source, (2) water-cooled hole No. 19 in the ORNL Graphite Reactor, and (3) lattice position C-46 in the LITR. The maximum permis- sible dosage was limited by the formation of open slits in some polymer films (caused by shrinkage and loss in film strength). It was found that the dosage on polystyrene, polyvinyl chloride, mylar, and polymethyl methacrylate could be increased by irradiating ynmounted films. The discovery that postirradiation oxidation had occurred in irradiated polymers during exposure to air necessitated opening the evacuated sample tubes in a helium atmosphere. A glove box that Irradiation Exposure (X 10' rads) co60 Gamma, *106 r/lr Graphite Reactor, LITR, Average Sample Y O 6 r/hr, Y O 8 r/hr, Thickness In Oxygen In Vacuum in Vacuum in Vacuum (in.) 2.3, 11 6.6b 1.2, 2.3, 6.2 3.8, 6.1, 8.9 3.8, 6.1, 8.9 1.4, 8.9 1.4, 8.9 3.9, 5.2, 8.9 6.5 1.5, 16, 23, 31, 35 7.0 3.4 4.0,c 14, 18 3.8, 13, 20 4.8,' 16 16, 22 12, 40b 2.0, 6.5 3.8, 6.1 16,22 2.3, 6.2 16, 17 1.4, 6.1 22 %upplied by Dow Chemical Company. bSample crumbled; measurement after irradiation impossible. CCommerciaI film. 9 dAlso 0.008 and 0.030 in. exposed to 0.12 X 10 rads. eSupplied by B. F. Goodrich Co. 'Tube cracked during irradiation. gSupplied by E. 1. du Pont de Nemours & Co., Inc. 250 1000, 1000, 1500 0.0018 0.002 0.0012d 0.003 0.002 0.004 0.004 0.002 0.0004 0.0006 0.00025 0.0015 v* t - -4 hps
U could be evacuated was used for this operation and for transferring the specimens to a gas-tight infrared absorption cell for spectral measurement, The absorption cell was then opened in air, and measurements of the spectrum were repeated after various periods of exposure to the atmosphere. As an example of the spectral changes observed in polymers, the spectrum of a polystyrene sample is shown in Fig. 4.2.19. While polystyrene is more " Fig. 4.2.19. Infrared Spectra of Polystyrene. PERIOD ENDING JUNE 10, 1956 resistant to change by radiation than most polymers are, the changes that may be seen in Fig. 4.2.19 are typical of the alterations of the infrared spectra by irradiation. Dosages of the order of lo8 to 10" rads were required to produce significant changes in the infrared spectra of most polymers. A large postirradiation effect was observed in the spectra of polystyrene, GR-S, and natural rubber. Upon exposure to air following irradiation in vacuum, oxidation products continued to form for periods of up to 95 days. These reactions were indicated by the growth of strong hydroxyl and carbonyl bands. The oxidation products formed in postirradiation oxidation were different from those produced by irradiation in oxygen. Irradiation of polystyrene in vacuum to high doses produced a wholesale .disruption in which both the aromatic and aliphatic components were equally affected. On the other hand, the aliphatic component of GR-S (a styrene-butadiene copolymer) showed a greater percentage change than did polybutadiene at equal dosages. All polymers showed significant changes in the double-bond region? as a result of irradiation. In polyethylene, RR,C= CH, groups disappeared as trans RCH=CHR, groups formed. In GR-S and polybutadiene the number of terminal vinyl groups decreased and the unsaturation in the hydrocarbon chains of GR-S and of natural rubber was decreased. Irradiation increased the number of tram RCH=CHR, groups in natural rubber, as it did in polyethylene. Conjugated and uncon jugated unsaturation was produced in polyvinyl chloride. 251
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Part 1 AIRCRAFT REACTOR ENGINEERING
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STATUS OF ART DESIGN Design work on
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of pressure loads. The idealized mo
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UPPER DECK 7 @ PRESSURE SHEL PERIOD
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SOD,UM r--- INCONEL TANK ROOF 0 0.5
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TABLE 1.1.1. NaK PUMP SPEEDS AND HO
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62 CALCULATED HEATING (w/crn3) N w
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where I = radius of source (taken a
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heat exchanger was used. The heatin
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head which are bounded by various t
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h bd * W - EcBRc+ ORNL-LR-DWG I4918
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PERIOD ENDlNC JUNE 10. 1956 TABLE 1
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ENRICHER ACTUATOR J. M. Eastman Spe
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hd - Thus, even with an input signa
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- . 140 120 p 100 g d 80 8 L s In y
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and lose their hardness in the pres
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p. W 2.5 0.5 0 400 OPERATING TIME (
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i 20 too 80 40 20 PERIOD ENDING JUN
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c' I - + r 500 450 400 3 50 300 2 2
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01) 0V3H 5: N 0 2 s 0 0 0 5: 0 2 s
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the first 200OF and B0F/sec for the
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PERIOD ENDING JUNE 10, 1956 TABLE 1
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L 0 _, I, -* t; - PERIOD ENDING JUN
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LJ 0.005 in. on the diameter and a
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I 3 -I W CALROD HEATER 1500 I 1400
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-17 Inconel I .._I_ I" .. _ _ ~ ._
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i E ART FACILITY F. R. McQuilkin Co
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L7i PERIOD ENDING JUNE 10, 1956 Fig
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PERIOD ENDING JUNE 10, 1956 Fig. 1.
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ART OPERATING MANUAL W. B. Cottrell
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Part 2 CHEMISTRY W. R. Grimes
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W 2.1. PHASE EQUILIBRIUM STUDIES' C
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- 0 Q 3 G 4000 900 800 700 a w a 5
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- a t a w 1000 900 000 - P 700 3 2
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- 0 e 4 000 900 800 5 700 I- a a W
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ZrF4 9t2 PERIOD ENDING JUNE 10, 795
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U c * NaF*BeF2-2NaF*BeF2 triangle c
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THE SYSTEM MgF2-CaF2 L. M. Bratcher
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2.2. CHEMICAL REACTIONS IN MOLTEN S
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I id PERIOD ENDING JUNE 10, 1956 an
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PERIOD ENDlNG JUNE 10, 1956 V which
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u the salt-metal interface, and the
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of this reaction will be made at th
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+- + z 6 e 6 5 3 3 > k i m 3 2 2 1
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FeF,. The FeF, saturation points we
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UNIF, = yN should be unity (a pure
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Although it appears that the solubi
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, . 2.3. PHYSICAL PROPERTIES OF MOL
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-0 a rn u) u) DO2 oot c ;o rn OS g
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IL, - PERIOD ENDING JUNE 70, 7956 O
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8 00 700 600 - 0 0, w 500 a 3 I- U
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supporting plaque is loaded into th
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u 2.4. PRODUCTION OF FUELS c G. J.
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half of fiscal year 1957. This esti
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2.5. COMPATIBILITY OF MATERIALS AT
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volume of 1 M tartaric acid solutio
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After the trap has been opened, bot
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\ Part 3 METALLURGY W. D. Manly
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FLUORIDE FUEL MIXTURES IN INCONEL F
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PERIOD ENDING JUNE 10, 1956 TABLE 3
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Fig.3.1.3. Region of Maximum Attack
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(d . terminated after 1217 and 1339
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- . LJ BRAZING ALLOYS IN LIQUID MET
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PERIOD ENDING JUNE 10, 1956 NaK wer
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I PERIOD ENDING JUNE 10, 1956 I Fig
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0. PERIOD ENDING JUNE 10, 1956 Fig.
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Fig. 3.2.10. Apparatus for Studying
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STATIC TESTS OF INCONEL CASTINGS R.
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t (JnOOSll 3n918-3NOt IOH (JoOOSI)
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after the l00hr test. The extent of
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tests of the Lindsay Mix specimens,
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LJ DEVELOPMENT OF NICKEL-MOLYBDENUM
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LJ PERIOD ENDING JUNE 10, 1956 Fig.
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2. Canning of the billets with '/,-
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165 . c, e . c3 a PERIOD ENDING JUN
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u allow the billet to start through
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NEUTRON SHIELD MATERIAL FOR HIGH-TE
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PERIOD ENDfNG JUNE 10, 7956 Fig. 3.
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wrought plate used as base material
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J point. A mixture of 50-50 vol % L
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WELDING PROCEDURE: VERTICAL FIXED,
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4 2 t 4 2 in. t 2 WCLASSFKO ORNL-LR
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FABRICATION OF JOINTS BETWEEN PUMP
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* h WELDING PROCEDURE PERlOD ENDING
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1 1 6 in. PUMP BARREL t SECTION AA
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'4 x 6 x 20-in. INCONEL PLATES (/*-
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UNCLASSIFIED PHOTO 17248 Fig. 3.4.1
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through the radiator by passing col
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L, . 1 Q t V ERIOD ENDING JUNE 10,
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to permit the examination of indivi
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LJ . t L t * I LJ Fig. 3.4.33. Tube
Page 185 and 186: Fig. 3.4.37. Inner Surface of Tube
Page 187 and 188: EFFECTOF ENVIRONMENTONCREEP- RUPTUR
Page 189 and 190: PERIOD ENDING JUNE 10, 1956 UNCLASS
Page 191 and 192: Fig. 35.7. Surface Effect on the St
Page 193 and 194: 44,000 42,000 40,000 - ._ (D 8000 v
Page 195 and 196: \:r 1 U UNCL 1158 W ioo,ooo 80,000
Page 197 and 198: fuel mixture (No. 30) NaF-ZrF -UF,
Page 199 and 200: i u * ‘*$ , .\. The Lindsay Chemi
Page 201 and 202: 6, * c L . c e 4 gi depths greater
Page 203 and 204: i 4 Part 4 HEAT TRANSFER AND PHYSIC
Page 205 and 206: 4.1. HEAT TRANSFER AND PHYSICAL PRO
Page 207 and 208: This relationship gives the ratio o
Page 209 and 210: The parameters of the’experiment
Page 211 and 212: t Fig. 4.1.7. Fuel Annulus of the V
Page 213 and 214: uncooled wall temperature that woul
Page 215 and 216: SHIELD MOCKUP REACTOR STUDY L. C. P
Page 217 and 218: Liquid (688 to 8986C) I . HT - H3Q
Page 219 and 220: THERMAL CONDUCTIVITY W. D. Powers T
Page 221 and 222: cd Fig.4.2.4. Slingers from MTR In-
Page 223 and 224: a plug when they came in contact wi
Page 225 and 226: couples were used on this loop to e
Page 227 and 228: 0 20 40 60 80 lo0 I20 440 (60 180 2
Page 229 and 230: "fast" neutron in a graphite reacto
Page 231 and 232: eached thermal equilibrium in an in
Page 233 and 234: 0.5 0.4 - a3 l- W z 0.2 0.1 UNCLASS
Page 235: TABLE 4.2.3. RESULTS OF EXAMINATION
Page 239 and 240: ! j * . x - iu I PERlOD ENDlNG JUNE
Page 241 and 242: CRITICAL EXPERIMENTS FOR THE COMPAC
Page 243 and 244: . I) a W PERIOD ENDING JUNE 10, 195
Page 245 and 246: U I I R i c . --. in. long, 18’4,
Page 247: I, . R t 3 4 . C 7 6 5 W 5 a c3 E4
Page 250 and 251: 1 a
Page 252 and 253: ANP PROJECT PROGRESS REPORT ot(E) =
Page 254 and 255: ANP PROJECT PROGRESS REPORT TABLE 5
Page 256 and 257: ANP PROJECT PROGRESS REPORT TABLE 5
Page 258 and 259: 6 ANP PROJECT PROGRESS REPORT 2 lo7
Page 260 and 261: ANP PROJECT PROGRESS REPORT GAMMA-R
Page 262 and 263: ANP PROJECT PROGRESS REPORT 5.3.3,
Page 264 and 265: ANP PROJECT PROGRESS REPORT A I P I
Page 266 and 267: ANP PROJECT PROGRESS REPORT SECTION
Page 268 and 269: ANP PROJECT PROGRESS REPORT .. .._
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