Honda metal

Honda metal, a ternary alloy prepared by Professor Honda of Japan, has a lower thermal coefficient of expansion even than silica. Its composition is given in the table on p. 297. 

On his return home in 1911, Honda was appointed professor of physies at the new Tohoku Imperial University in Sendai, in the north of Japan this institution had been established only in 1906, when the finance minister twisted the arm of an industrialist who had made himself unpopular because of pollution eaused by his copper mines and extracted the necessary funds to build the new university. A provisional institute of physical and chemical research was initiated in 1916, divided into a part devoted to novel plastics and another to metals. This proved to be Honda s lifetime domain he assembled a lively team of young physicists and chemists. In the same year, Honda invented a high-cobalt steel also containing tungsten and chromium, which had by far the highest coercivity of any permanent-magnet material then known. He called it KS steel, for K. Sumitomo, one of his sponsors, and it made Honda famous. 

Ohto, K. Nagata, J. Honda, S. Yoshizuka, K. Inoue, K. Baba, Y. Solvent extraction of precious metals with an organoaminophosphonate. Solvent Extr. Ion Exch. 1997, 15, 115-130. 

Honda, K., J.E. Marcovecchio, S. Kan, R. Tatsukawa, and H. Ogi. 1990. Metal concentrations in pelagic seabirds from the north Pacific Ocean. Arch. Environ. Contam. Toxicol. 19 704-711. 

Honda, K., H. Ichihashi, and R. Tatsukawa. 1987. Tissue distribution of heavy metals and their variations with age, sex, and habitat in Japanese serows (Capricomus crispus). Arch. Environ. Contam. Toxicol. 16 551-561. 

Fujise, Y., K. Honda, R. Tatsukawa, and S. Mishima. 1988. Tissue distribution of heavy metals in Dali s porpoise in the northwestern Pacific. Mar. Pollut. Bull. 19 226-230. 

Toyota and Honda have been experimenting with both methanol and metal-hydride storage of hydrogen. Honda has built several test cars, in 1999 a Honda FCX-V1 (metal-hydride hydrogen) and FCX-V2 (methanol) were tested at a track in Japan. The Ballard powered version-1 was ready, but proved to be a little sluggish and noisy. The other car suffered from a noisy fuel cell. Both Honda fuel cell test cars were built on the chassis of the discontinued EV Plus battery electric. Honda used a different and more aerodynamic body. 

Several prototypes have placed the tank on the roof, like the NECAR II van, this might be acceptable in a high roofed van but not in most passenger cars. High weight in the roof also makes the vehicle unstable at higher speeds. Storing the fuel in special structures has been done by Toyota, Honda and others, but the metals and structures are expensive. 

In fact, in 1972, Fujishima and Honda (10) demonstrated that O2 evolution on n-type Ti02 occurs as a photocurrent, proportional to the light intensity (Figure 1) of wavelengths less than 415 nm, i.e. for photon energies equal to or greater than the band gap of Ti02 3.0 eV. In this work and that of Ohnishi et al. (11) a platinum black metal cathode was connected in an external circuit to an indium contact on the back side of the photo-anode (see... 

Miodownik, A. P. (1978a) in Honda Memorial Volume on Metal Science and Metallurgy, in Physics and Application of Invar Alloys, ed. Saito (Maruzen, Tokyo) 3(18), p. 429. Miodownik, A. P. (1978b) ibid. 3(12), p. 288. 

This chapter considers photoanodes comprised of metal oxide semiconductors, which are of relatively low cost and relatively greater stability than their non-oxide counterparts. In 1972 Fujishima and Honda [1] first used a crystal wafer of n-type Ti02 (rutile) as a photoanode. A photoelectrochemical cell was constructed for the decomposition of water in which the Ti02 photoanode was connected with a Ft cathode through an external circuit. With illumination of the Ti02 current flowed from the Ft electrode to the... 

Fujishima A, Honda K (1972) Electrochemical photolysis of water at a semiconductor electrode. Nature 238 37-38 Yamashita H, Harada M, Misaka J, Takeuchi M, Neppolian B, Anpo M (2003) Photocatalytic degradation of organic compounds diluted in water using visible light-responsive metal ion-implanted Ti02 catalysts Fe ion-implanted Ti02. Catal Today 84 191-196... 

Baba R, Nakabayashi S, Fujishima A, Honda K (1985) Investigation of the mechanism of hydrogen evolution during photocatalytic water decomposition on metal-loaded semiconductor powders J Phys Chem 89 1902-1905... 

H. P. Bonzel, in Structure and Properties of Metal Surfaces, Vol. 1, p- 248. Honda Memorial Series on Materials Science (ed. by S. Shimodaira). Maruzen, Tokyo 1973. 

Yamashita H, Honda M, Harada M, et al. Preparation of titanium oxide photocatalysts anchored on porous silica glass by a metal ion-implantation method and their photo-catalytic reactivities for the degradation of 2-propanol diluted in water. J Phys Chem B 1998 102 10707-11. 

Yamaguchi, Y., Yamanaka, Y., Miyamoto, M., Fujishima, A. and Honda, K. (2006), Hybrid electrochemical treatment for persistent metal complex at conductive diamond electrodes and clarification of its reaction route. J. Electrochem. Soc., 153(12) J123-J132. 

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