ORNL-1816 - the Molten Salt Energy Technologies Web Site

More documents

Recommendations

Info

1 I ANP QUARTERLY PROGRESS REPORT have developed a suitable composition by using Sic as the bonding material. However, specific details and samples of the material have yet to be received. Tubular Fuel Elements Twelve fuel plates have been prepared for forming into tubes, and eight more are being prepared. These tubes are to be drawn at Superior Tube Co. by the plug-drawing technique with low (10%) reductions. Other techniques such as hot drawing or hot swaging may be used. Control Rods Thirty-five control ro eing prepared for the GE-ANP project. They were received as specially straightened tubes, 0.504 in. ID, 0.625 in. OD, 35 in. long, with one end plugged. The being filled with a mixture of 50% alumi- er and 50% B,C, both supplied by the General Electric Company. The B,C is a special grade containing 81% boron. The mixture is prepared with 2% paraffin as a binder and is being packed tightly into the tubes with a pneumatic hammer. Very small increments are used to obtain a high density. Twenty tubes have been filled with average boron concentrations of about 0.8 g/cm3, that is, somewhat in excess of the 0.7 g/cm3 required. After filling is completed, the . tubes will be heated and evacuated to remove the paraffin and then cold swaged to final size. AI-UO, Elements for Shielding Experiment Fuel plates 28 in. long and 23/4 or 2% in. wide are being prepared for an experiment to determine the shielding necessary for delayed neutrons. These plates are to be mounted on a belt and rotated at speeds up to 22 fps. The fuel concen- tration of 0.25 g/cm3 required for these plates is quite high compared with that usually specified for fuel plates, and therefore new fabrication problems must be resolved. Several plates have been fabricated by using UO, and aluminum powder cores roll clad with aluminum. Three plates having 0.040-in. core ith 62 wt % UO, had the required fuel ation. Both high-fired and steam-oxidized UO, were used with good results. The edges of the core were quite clean and straight, and the UO, was distributed fairly uniformly, as shown by radiograph examination. Because of the high 1 08 percentage of UO,, it was necessary to hot roll the plates with the covers on at all stages to prevent oxidation. Plates with lower percentages of UO, may be protected with thin aluminum foil pressed on the core compact during cold pressing. The finished plates, as-clad with 2s aluminum, were judged to be too weak for the high stresses involved in the rapid cycling. Several more elements are being assembled by using 52s aluminum as frame and cladding in the hope that work harden- ing obtained in finish cold rolling will yield plates of sufficient strength. BRAZING ALLOY DEVELOPMENT P. Patriarca K. W. Reber R. E. Clausing G. M. Slaughter Meta I I urgy D iv i si on J. M. Cisar Aircraft Reactor Engineering Division R. L. Heestand Pratt & Whitney Aircraft The resistance to oxidation of a number of high- temperature brazing alloys when used in con- - junction with lnconel as a base material was , - described in a previous report., This study has been extended to include tests of several additional brazing alloys. These tests have been conducted in accordance with the experimental procedures 1 used in the previous studies. The results of metallographic examination of inverted T-joint specimens after exposure to static air at 15OOOF for periods of 200 and 500 hr are summarized in Table 7.6. It appears that the majority of these alloys are suitable for service within the limits of this investigation. The periods of exposure currently being studied extend to 1000 hr. Tests are. also being conducted at 170OOF in static air. It is recognized that the test results obtained to date may not be applicable except under isothermal conditions. Therefore a duplicate set of experiments will be conducted to determine the effect of thermal cycling on the adherence of protective oxide films. Included in these tests will be a determination of the effect of the presence of water * vapor on the nature of the scale formation and the resistance of this scale to spalling under con- .. ditions characterized by temperature fluctuations. ' * I 5 . * .
PERIOD ENDING DECEMBER 70, 7954 TABLE 7.6. OXIDATION RESISTANCE OF DRY-HYDROGEN-BRAZED T-JOINTS Parent metal: lnconel Average fillet throat: 0.015 in. Air temperature: 150OoF Brazing Brazing Alloy Composition (wt %) Temperature Commercial Alloys (OF) Coast Metals NP 50 Ni-12 Si-28 Fe-4 Mo-4.5 P-1 Mn-0.5 Cr 2050 Coast Metals 50 93 Ni-3.5 Si-2.5 B-1 Fe 2050 Coast Metals 51 92 Ni-4.5 Si-3 8-0.5 Fe 2050 Coast Metals 53 81 Ni-4 Si-4 8-8 Cr-3 Fe 1950 Experimental Nickel-Base Alloys G-E alloy 62 69 Ni-20 Cr-11 Si 2150 G-E alloy 81 66 Ni-19 Cr-10 Si-4 Fe-1 Mn 2150 Ni-Cr-Si Ni-10 Si-16.5 Cr 2150 Ni-Si 88 Ni-12 Si 2200 Ni-Mo-Ge 50 Ni-25 Ma-25 Ge Ni-Mn-Cr -55 Mn-10 Cr 2150 2050 Experimental Precious-Metal-Base Alloys Pd-Ni 2300 Pd-Ni-Si 60 Pd-37 Ni-3 Si 2150 Pd-Ge 90 Pd-10 Ge 2050 Au-CO 90 Au-10 Co 1830 Oxidation in Static: Air at 15OO0F* After 200 hr After 500 hr Slight SI igtlt Slight Slight Slight Slight Slight Slight Slight Slight Slight Slight Slight Sligtit Slight Slight Slight Slight Severe Severe Very slight Very slight Very slight Very slight Very slight Slight Very slight Slight
Page 1:
ORNL DOCUMENT REFERENCE LIBRARY, Y-
Page 4 and 5:
.. II 1. G. M. Adamson 2. R. G. Aff
Page 6 and 7:
iv R ports pr ri ORNL-528 ORNL-629
Page 8 and 9:
t s
Page 10 and 11:
4 . CRITICAL EXPERIMENTS ..........
Page 12 and 13:
Removal of Xe13' from Molten Fluori
Page 14 and 15:
ANP QUARTERLY PROGRESS REPORT main
Page 16 and 17:
ANP QUARTERLY PROGRESS REPORT 26OOC
Page 18 and 19:
ANP QUARTERLY PROGRESS REPORT syste
Page 20 and 21:
incident on crew shield sides and r
Page 23 and 24:
1. CIRCULATING-FUEL AIRCRAFT REACTO
Page 25 and 26:
clean reactor at a low power for a
Page 27 and 28:
for more than 0.6 Mw in the sodium,
Page 29 and 30:
I .o 08 0.6 . E - ‘z I - 0.4 0.2
Page 31 and 32:
i PERIOD ENDING DECEMBER 70,7954 Fi
Page 33 and 34:
Analytical studies, layout work, an
Page 35 and 36:
XENON- REMOVAL SYSTEM 4 BLEED CIRCU
Page 37 and 38:
c. . f 0 L .. would mean that most
Page 39 and 40:
‘s = = (tot a I f i s s ion s/sec
Page 41 and 42:
L . PERIOD ENDING DECEMBER 70, 7954
Page 43 and 44:
PERIOD ENDING DECEMBER 70, 7954
Page 45 and 46:
PERIOD ENDING DECEMBER 70, 7954 Fig
Page 47 and 48:
A" d OIL IN-l OIL IN-2 NUCLEAR I N
Page 49 and 50:
7 . " e- It should be noted that th
Page 51 and 52:
the floor up to 3 ft below the bolt
Page 53 and 54:
" i' Design work is under way on an
Page 55 and 56:
The pump has unusual ability to rem
Page 57 and 58:
into operation with a Reynolds numb
Page 59 and 60:
. . . . .- . Fig. 3.5. Heat Exchang
Page 61 and 62:
TABLE 3.1. GAS-FIRED FURNACE OPERAT
Page 63 and 64:
n while connected to a small tank o
Page 65 and 66:
Fig. 4.1. Second Reflector-Moderate
Page 67:
- . c ' t P - 9 Part I MATERIALS RE
Page 70 and 71: ANP QUARTERLY PROGRESS REPORT 58 4e
Page 72 and 73: ANP QUARTERLY PROGRESS REPORT UF, S
Page 74 and 75: ANP QUARTERLY PROGRESS REPORT wheth
Page 76 and 77: ANP QUARTERLY PROGRESS REPORT In th
Page 78 and 79: 1Y PROGRESS REPORT y equilibration
Page 80 and 81: ANP QUARTERLY PROGRESS REPORT were
Page 82 and 83: ANP QUARTERLY PROGRESS REPORT Conse
Page 84 and 85: AN P QUARTERLY PROGRESS R €PO RT
Page 86 and 87: ANP QUARTERLY PROGRESS REPORT TABLE
Page 88 and 89: ANP QUARTERLY PROGRESS REPORT Studi
Page 92 and 93: 1 ANP QUARTERLY PROGRESS REPORT 19.
Page 96 and 97: ANP QUARTERLY PROGRESS REPORT appea
Page 98 and 99: 1 I I I . . ANP QUARTERLY PROGRESS
Page 100 and 101: ANP QUARTERLY PROGRESS REPORT Fig.
Page 102 and 103: 06 dWnd lV'91NVH33W 01 A XI13 X3tlA
Page 104 and 105: ANP QUARTERLY PROGRESS REPORT 0.001
Page 106 and 107: I ANP QUARTERLY PROGRESS REPORT ] 1
Page 108 and 109: ANP QUARTERLY PROGRESS REPORT If a
Page 110 and 111: ANP QUARTERLY PROGRESS REPORT phase
Page 112 and 113: ANP QUARTERLY PROGRESS REPORT 7. ME
Page 114 and 115: ANP QUARTERLY PROGRESS REPORT fabri
Page 116 and 117: ANP QUARTERLY PROGRESS REPORT - N -
Page 118 and 119: ANP QUARTERLY PROGRESS REPORT Fig.
Page 122 and 123: ANP QUARTERLY PROGRESS REPORT rruga
Page 124 and 125: ANP QUARTERLY PROGRESS REPORT eat t
Page 126 and 127: ANP QUARTERLY PROGRESS REPORT Plast
Page 128 and 129: ANP QUARTERLY PROGRESS REPORT 0.2 0
Page 130 and 131: ANP QUARTERLY PROGRESS REPORT STAIN
Page 132 and 133: i ANP QUARTERLY PROGRESS REPORT The
Page 134 and 135: ANP QUARTERLY PROGRESS REPORT Three
Page 136 and 137: ANP QUARTERLY PROGRESS REPORT - ORN
Page 138 and 139: ANP QUARTERLY PROGRESS REPORT kw at
Page 140 and 141: ANP QUARTERLY PROGRESS REPORT felt
Page 142 and 143: ANP QUARTERLY PROGRESS REPORT chlor
Page 144 and 145: ANP QUARTERLY PROGRESS REPORT prese
Page 146 and 147: ! ANP QUARTERLY PROGRESS REPORT 11.
Page 148 and 149: ANP QUARTERLY PROGRESS REPORT 136 A
Page 150 and 151: ANP QUARTERLY PROGRESS REPORT stand
Page 152 and 153: fused salt bath to permit dissoluti
Page 154 and 155: Fr . F
Page 156 and 157: ANP QUARlERlY PROGRESS REPORT chara
Page 158 and 159: ANP QUARTERLY PROGRESS REPORT injur
Page 160 and 161: ANP QUARTERLY PROGRESS REPORT 148 X
Page 162 and 163: ANP QUARTERLY PROGRESS REPORT In co
Page 164 and 165: ANP QUARTERLY PROGRESS REPORT - 103
Page 166 and 167: ANP QUARTERLY PROGRESS REPORT condu
Page 168 and 169: ANP QUARTERLY PROGRESS REPORT For m
Page 170 and 171:
15. TOWER SHIELDING FACILITY C. E.
Page 172 and 173:
ANP QUARTERLY PROGRESS REPORT - .-
Page 174 and 175:
ANP QUARTERLY PROGRESS REPORT 162 -
Page 176 and 177:
h .e 0 c 0 L ’c v c t 0 W v) 0 a
Page 178 and 179:
f r e
show all

ORNL-1816 - the Molten Salt Energy Technologies Web Site

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?