Reference

Effect of additives on the electrical properties and microstructure of zinc oxide-niobium pentoxide ceramics

Effect of additives on the electrical properties and microstructure of zinc oxide-niobium pentoxide ceramics. Sayano, Akio; Nakagawa, Zenbee; Hamano, Kenya (Res. Lab. Eng. Mater., Tokyo Inst.In this study， 1313-96-8 and 1344-43-0 are also used. Technol., Yokohama 227, Japan). Yogyo Kyokaishi, 92(1), 15-24 (Japanese) 1984. CODEN: YGKSA4. ISSN: 0372-7718. DOCUMENT TYPE: Journal CA Section: 57 (Ceramics) A 3rd component (CaO, SrO, BaO, SiO2, CoO, or MnO) was added to ZnO ceramics contg. 1 mol% Nb2O5 in order to alter the properties of melts formed during firing. The elec. resistivity, voltage-current (V-I) relation and microstructure of sinters were examd. The addn. of CaO, SrO, and BaO improved the wetting of intergranular layers to ZnO grains and increased the room-temp. elec. resistivity. The addn. of SiO2 also improved the wetting, but did not affect the elec. properties. CoO produced no changes in the fired body. Although it did not strongly affect the microstructure, the addn. of MnO markedly increased the room-temp. resistivity and gave rise to a nonlinear V-I relation. The ZnO specimen contg. only MnO also had high elec. resistivity and some V-I relation nonlinearity. The addn. of a small amt. of Nb2O5 to the ZnO-MnO system strikingly decreased the elec. resistivity, but an increase in the amt. of Nb2O5 addn. (1 mol%) again enhanced the elec. resistivity and led to a nonlinear V-I characteristic. .

Powder pack for chromium-siliconizing of nickel-plated carbon steel products

Powder pack for chromium-siliconizing of nickel-plated carbon steel products. Kukharev, B. S.Several substances are used for example 7440-02-0 and 1313-96-8 which are their cas registry numbers.; Islamov, A. M.; Kukhareva, N. G.; Shirina, I. V. (Belorussian Polytechnic Institute, USSR). U.S.S.R. SU 1046337 A1 7 Oct 1983 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1983, (37), 103. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: C23C009-04. APPLICATION: SU 82-3450758 11 Jun 1982. DOCUMENT TYPE: Patent CA Section: 55 (Ferrous Metals and Alloys) Section cross-reference(s): 72 The mixt. ensuring corrosion resistance of Ni-plated C steel in HCl contains 2.10-2.15% Nb2O5 in addn. to Cr oxide 33-35, Al 6.5-8.5, silicocalcium 6.35-6.40, NH4Cl 1-3%, and balance Al2O3 carrier. .