Bamboo was thermally treated at 180 ° C and 200 ° C, and the micromechanical properties of its cell walls were investigated by means of quasi-static and dynamic nanoindentation experiments. With increasing treatment temperatures, the average dry density and mass of the bamboo decreased, whereas the already reduced elastic modulus at 180 ° C of the fiber cell walls did not change, but the hardness showed increasing tendencies. Dynamic nanoindentation revealed reduced storage modulus r ( ) E′ and loss modulus r ( ) E′′ for the thermotreated bamboo cell walls compared with the untreated bamboo fibers in all frequency regions. Moreover, r r , , E E ′ ′′ and loss tangent (tan δ ) of treated bamboo decreased with increasing treatment temperature.

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In this paper, GaSb-based material in the near-infrared semiconductor laser has a broad application prospects. For the problems and etching solution suitable particularly critical of etching GaSb-based material. we studied on different etchant experimental analysis the HCl+HNO 3 (30+1)@T=5 ℃ ， 37% HCl ， HNO 3 +(0.08MHCl+CH 3 COOH) and HCl+H 2 O 2 +H 2 O(60+1+1), due to etching, the effects of different etching solutions on GaSb surface morphology, corrosion rate, etc., obtained HCl + H 2 O 2 + H 2 O (60 + 1 + 1) treatment results was better, SEM showed the etched edge relatively tidy, relatively steep side, etched crystal to better selectivity, AFM surface roughness was 1.7nm.

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