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Aug 01, 1920 |
Austenitic chromium-nickel steels
B. Strauss and E. Maurer, Krupp, announce the commercial
possibilities
of austenitic chromium-nickel steels.
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Sep 1972 |
Belgirate
NATO-sponsored conference on Fast Ion Transport in Solids,
Solid State Batteries and Devices. It took place in
Belgirate, Italy, and marked a budding consciousness of
solid state ionics as a discipline.
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Sep 05, 1922 |
Beryllium metal produced
A. Stock and H. Goldschmidt produce beryllium metal by
electrolysis of
fused bath sodium and beryllium fluorides.
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1922 |
Boron is introduced into steel
H.W. Gillet and E.L. Mack combine aluminum and ferroboron
in order to
introduce boron into steel.
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Oct 17, 1929 |
Carbon and graphite materials
A patent is issued to I.G. Farben on the use of phosphoric
acid as an oxidation retardant in carbon and graphite
materials.
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Sep 01, 1957 |
Chain-length distributions in solutions of sodium phosphate glasses
A.E.R. Westman and P.A. Gartaganis study the chain-length
distributions in solutions of sodium phosphate glasses and
discover cyclic phosphates to exist in solutions of glasses
having or approaching the metaphosphate composition despite
prolonged heating of the glasses in molten condition.
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Oct 26, 1977 |
Chimie douce
France : The term 'chimie douce' is coined by Jacques
Livage in an article published in Le Monde.
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1928 |
Chromium content in nickel-chromium compounds studied
C.J. Smithels, S.V. Williams, and J.W. Avery report that
although oxidation resistance increased in nickel-chromium
compounds as the chromium content increased from 20% to
30%, the strength at temperatures above 750 degrees C
decreased with increasing chromium content.
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Oct 25, 1922 |
Coating for airplane wings of cellulose acetate formed
H. Gault develops a coating, formed of cellulose acetate in
combination with other compounds, to be used on airplane
wings covered with cloth fabrics.
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Aug 11, 1925 |
Cobalt added to toughen tungsten carbide
K. Schroter adds cobalt metal to tungsten carbide to form a
tougher material than the cast carbide.
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Dec 01, 1957 |
Coiled chips cut from highly polished materials display plasticity
E. Ryshkewitch, National Beryllia Corp., observes that
coiled chips display plasticity when a diamond tool (at
room temperature) cuts the surface of highly polished
materials (ruby, quartz glass, etc.).
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Apr 19, 1921 |
Composition of two acid-resisting alloys disclosed
A.W. Clement discloses the composition of two acid-
resisting alloys,
one having 10% molybdenum, 80% cobalt or nickel, and 0.1-
4.0%
manganese, with of without 10% iron, the second lacking
manganese.
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Sep 20, 1922 |
Condensation product from formaldehyde and urea
H. Goldschmidt and O. Neuss produce a condensation product
from
formaldehyde and urea in the presence of acids and acid
salts.
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Jul 03, 1923 |
Condensation product of urea and formaldehyde obtained
K. Ripper obtains a condensation product of urea and
formaldehyde by the use of salts giving an alkaline
reaction on hydrolysis. These are added to retard
gelatinization of the initial condensation products soluble
in water.
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Nov 01, 1926 |
Condensation products from formaldehyde and urea obtained
F. Pollack obtains condensation products from formaldehyde
and urea by reacting urea, etc., with formaldehyde (or a
polymer of it) in the presence of a base such as ammonia,
pyridine, or urea itself.
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May 21, 1979 - May 25, 1979 |
Conference on Fast Ion Transport in Solids
International conference on Fast Ion Transport in Solids,
Electrodes and Electrolytes takes place in Lake Geneva,
Wisconsin, USA. Proceedings are edited by P. Vashista, J.N.
Mundy, G.K. Shenoy.
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May 18, 1981 - May 22, 1981 |
Conference on Fast Ionic Transport in Solids
International conference held in Gatlinburg, Tennessee, U.S.A
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Aug 01, 1926 |
Corrosion-resistant oxide coating for aluminum developed
G.D. Bengough and H. Sutton develop a corrosion-resistant
oxidecoating for aluminum.
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Nov 13, 1925 |
Creep resistance of Ni-chromium alloy studied
H.J. Tapsell and J. Bradley find the creep resistance of 80-
20 nickel-chromium alloy to be superior to other materials
available at this time.
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Feb 09, 1925 |
Cyclization of rubber developed
Cyclization of rubber, which later proves to be the basis
of a number of industrially important adhesives, is
developed by W.C. Geer.
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