【摘 要】
:
The matching performance among the visible and near infrared conting, the low infrared emitting coating and the microwave absorbing coating was investigated. Ex
【机 构】
:
College of Materials Science and Engineering,Center for Surface Materials and Technology
论文部分内容阅读
The matching performance among the visible and near infrared conting, the low infrared emitting coating and the microwave absorbing coating was investigated. Experimental results shaw that the resulting material is characteristic of wideband effect ranging from the visible, near infrared and 3-5μm, 8- 14 μm infrared portion of the spectrum, as well as the radar region from 8 to 18 GHz when these three materials form a layerstructure material system. The microwave absorbing ability of material is hardly changed. The resonance peak moves towards lower frequency as the thickness of the visible, near infrared coating and the low infrared emitting coating increases. This problem can be resolved by controlling the thickness of the material. On the other hand,the infrared emissivity ε of the material system increases as the thickness of the visible, near infrared coating increases. This can be resolved by increasing infrared transparency of the visible and near infrared topcoating or controlling its thickness. The experimental resulting material system has spectral reflection characteristics in visible and near infrared regions that are similar to those of the natural bnckground.
其他文献
Small amounts of silver have been added to the intermetallic compound NiAl with the purpose of improving its mechanical properties. Four ternary NiAl-Ag alloys
From the measurement of liquid flow field on a large plate by a hot-film anemometer, three different regions on the large plate were presented, including a liqu
The electromagnetic-mechanical stirring technology was employed for preparing QTi4.3-4 graghite composite slurry, and QTi4.3-4 graghite composite with uniform d
The equation of two-dimensional fiber direction vector was solved theoretically to give the fiber orientation distribution in simple shear flow, flow with two d
The La-Mg-Ni-system (PuNi3-type) La2Mg(Ni0.85Co0.15)9M0.1 (M=B, Cr) hydrogen storage electrode alloys were prepared by casting and rapid quenching. The electroc
The electrochemical nucleation mechanism of nickel on the vitreous carbon electrode from n-Al2 Os/Ni composite brush plating system was investigated using poten
The effect of different kinds of cap layers on optical property of InAs quantum dots (QDs) on GaAs (100) substrate was studied. Temperature dependent photolumin
A proton-transfer complex of 1,2,4, 5-benzenetetracarboxylic acid ( H4 BTC ) with 1,10-phenanthroline ( phen ), [ ( H2 BTC )2-· 2 ( Hphen ) + · ( H4 BTC ) ] w
The non-random two liquids (NRTL) equation together with the Pitzer/Curl Virial equation of state are used to investigate the simultaneous representation of exc
ZnO thin films were deposited on the substrates of (100) γ-LiAlO2 at 400, 550 and 700℃ using pulsed laser deposition (PLD) with the fixed oxygen pressure of 2