The water-saving technique, which prevents water from downward seepage and salts from upward, was proposed on the basis of analysis of the two major processes of material differentiation in the desertification process...The water-saving technique, which prevents water from downward seepage and salts from upward, was proposed on the basis of analysis of the two major processes of material differentiation in the desertification process of semiarid zone. The organic-inorganic complex materials are water emulsion, which are composed of the polymer and clay, possesses a clay penetrability and can penetrate coarse sand to react with calcium ions from soil to form a gel waterproof layer, which can prevent water from seepage.展开更多
In this paper, p type Fe 1- x Mn x Si 2( x =0—0 12) and n type Fe 1-y Co y Si 2( y =0—0 12) were synthesized by means of ceramic technology. The influence of additive amounts of Mn and Co, and heat treatment on the ...In this paper, p type Fe 1- x Mn x Si 2( x =0—0 12) and n type Fe 1-y Co y Si 2( y =0—0 12) were synthesized by means of ceramic technology. The influence of additive amounts of Mn and Co, and heat treatment on the amounts of β phase formed were studied. Experimental results indicate that addition of Mn and Co could inhibit the amounts and velocity of phase formation. High relative density( D r) of p type Fe 1- x Mnx Si 2 and n type Fe 1-y Co y Si 2 causes excellent corrosion resistance and heat resistance which are beneficial for manufacture of thermoelectric components.展开更多
文摘The water-saving technique, which prevents water from downward seepage and salts from upward, was proposed on the basis of analysis of the two major processes of material differentiation in the desertification process of semiarid zone. The organic-inorganic complex materials are water emulsion, which are composed of the polymer and clay, possesses a clay penetrability and can penetrate coarse sand to react with calcium ions from soil to form a gel waterproof layer, which can prevent water from seepage.
文摘In this paper, p type Fe 1- x Mn x Si 2( x =0—0 12) and n type Fe 1-y Co y Si 2( y =0—0 12) were synthesized by means of ceramic technology. The influence of additive amounts of Mn and Co, and heat treatment on the amounts of β phase formed were studied. Experimental results indicate that addition of Mn and Co could inhibit the amounts and velocity of phase formation. High relative density( D r) of p type Fe 1- x Mnx Si 2 and n type Fe 1-y Co y Si 2 causes excellent corrosion resistance and heat resistance which are beneficial for manufacture of thermoelectric components.
