Reference

Accuracy analysis of the thermal diffusivity measurement of molten salts by stepwise heating method

Accuracy analysis of the thermal diffusivity measurement of molten salts by stepwise heating method. Kato, Yoshio; Furukawa, Kazuo (Div. Fuel Res., JAERI, Tokai, Japan). Nippon Genshiryoku Kenkyusho, Kokai JAERI-Memo, JAERI-M-6824, 28 pp. (English) 1976. CODEN: NGJMAU. DOCUMENT TYPE: Report CA Section: 71 (Nuclear Technology) Section cross-reference(s): 68 The stepwise heating method for measuring thermal diffusivity of molten salts is based on the elec. heating of a thin metal plate as a plane heat source in the molten salt. A measuring app. is proposed and measuring conditions are suggested on the basis of error estns. on (1) the thickness effect of the metal plate, (2) the effective length between the plate and a temp. measuring point, and (3) the effect of noise on the temp. rise signal. The measurements for distd. H2O and glycerol [56-81-5] were made 1st to test the performance. The results agreed well with std. values. The thermal diffusivities of molten NaNO3 [7631-99-4] at 320-80.degree. and of molten Li2BeF4 [13874-36-7] at 470-700.degree. were measured.

Exothermic mixture for heating the top part of an ingot and a procedure for preparing it

Exothermic mixture for heating the top part of an ingot and a procedure for preparing it. Polyakov, V. F.; Konovalov, R. P.; Shneerov, Ya. A. (Institute of Ferrous Metallurgy, Academy of Sciences, Ukrainian S.S.R., USSR). U.S.S.R. SU 554074 15 Apr 1977 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1977, 54(14), 32-3. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: B22D027-04. APPLICATION: SU 75-2175161 25 Jul 1975. DOCUMENT TYPE: Patent CA Section: 56 (Nonferrous Metals and Alloys) To increase heat insulation involved during combustion, amorphous graphite is added. A typical mixt. consists of amorphous graphite [7782-42-5] 5-15, Al 15-35, sawdust 5-15, NaNO3 [7631-99-4], KNO3 [7757-79-1], or Ba(NO3)2 [10022-31-8] oxidizing agent 1-10, fluorite [14542-23-5] catalyst 1-5, expanded perlite 10-30 wt.%, and balance refractory filler.