[' ', 'Memo', '~', 'Weekly', 'Highlights', 'Week', 'of', 'August', '8', 'Ms.', 'M.', 'J.', 'Dryden', 'a', 'August', '16,', '1988', 'Page', '4', ' ', 'Fuel', 'Technology', '[e)', 'Sugar/starch', 'spray', 'coating', 'studies', 'to', 'evaluate', 'i', 'strength', 'have', 'been', 'baked', 'at', '800°C', 'and', 'are', 'in', 'the', 'process', 'of', 'being', 'tested.', 'Results', 'are', 'due', 'this', 'week.', '°', 'Efforts', 'have', 'begun', 'to', 'replace', 'CMC', 'as', 'the', 'fuel', 'binder.', 'Made', 'four', 'runs', 'this', 'week', 'using', 'several', 'gums', '(Locust', 'Bean,', 'Guar,', 'Xanthan', 'and', 'GFS).', 'This', 'initial', 'test', 'resulted', 'in', 'extended', 'parts', 'to', 'be', 'evaluated', 'for', 'strength', 'and', 'other', 'physical', 'parameters.', 'Contacted', 'Hercules,', '3M', 'and', 'National', 'Starch', 'for', 'literature', 'and', 'samples.', 'This', 'study', 'is', 'well', 'underway', 'and', 'an', 'on-going', 'effort.', '°', 'Received', 'SEM', 'micrographs', 'from', 'fuels', 'soaked', 'in', 'metallic', 'salt.', 'The', 'idea', 'was', 'that', 'the', 'metal', 'would', 'Geposit', 'along', 'grain', 'boundaries', 'or', 'in', 'some', 'preferred', 'location.', 'From', 'the', 'mapping', 'it', 'was', 'seen', 'that', 'the', 'salts', 'were', 'dispersed', 'evenly', 'throughout', 'the', 'fuel', 'on', 'the', 'carbon', 'particles', 'surface.', 'Salts', 'used', 'were', 'cucl.,', 'KC,', '05,', 'MnSO,', 'and', 'BaCl..', 'Pind', 'a', 'i', '(e}', '—s', 'fe]', 'Sugar', 'Impregnation', 'Vertical', 'and', 'horizontal', 'strengths', 'have', 'been', 'collected', 'on', 'fuels', '(RJO', 'Lot', '5338)', 'that', 'were', 'vacuum', 'impregnated', 'and', 'fluid', 'bed', 'dried', 'with', 'sugar', 'solutions', 'ranging', 'in', 'concentration', 'from', '50', 'to', '200', 'g/liter.', 'The', 'fuels', 'were', 'rebaked', 'once', 'at', '800°C.', 'The', 'strengths', 'showed', 'a', 'linear', 'increase', 'as', 'the', 'concentration', 'of', 'the', 'sugar', 'solution', 'increased.', 'Vertical', 'strengths', 'went', 'from', '42', 'to', '73', 'Kg', 'for', 'the', 'control', 'and', 'the', 'sample', 'impregnated', 'with', '200', 'g/liter', 'sugar', 'solution,', 'respectively.', 'Horizontal', 'strengths', 'went', 'from', '4.7', 'to', '6.3', 'Kg', 'for', 'the', 'sample', 'samples.', 'As', 'the', 'concentration', 'on', 'rw', 'e', '8', 'an', 'te', '&', '~', 'a', ' ']