Nitrogen of Nanobarb of tall purity of Dalian justice state changes boracic accept rice to be in charge of powder the application in radar cover

(clipper-built fire controls the airplane radar cover. The picture comes from a network) technology of aerospace radar cover is integrated material, craft, mechanical, electromagnetism, aerodynamics and structure are mechanical the knowledge that waits for course, design and production difficulty is greater. Very slashing to the requirement of material, radar cover needs to have not only show wave performance exceedingly goodly, nitrogen of Dalian justice state changes boracic accept rice to be in charge of powder to already was in Europe to apply successfully at a variety of type radar to overspread a domain. Have extremely tall than intensity, gao Yang model is measured, combat tensile strength high, satisfied a variety of requirement of cover of special type radar adequately tall coefficient of thermal conductivity. As the development of high-tech, radar applies extensively at the of all kinds domain such as plane, missile, nautical, atmosphere, and radar overspreads apply extensive with each passing day also. Radar overspreads the window that is electromagnetic wave, main effect is wait for antenna of radar antennae, electronic battle antenna, communication antenna, identification friend or foe to be kept apart with the outside. Radar is overspread with respect to the blinkers as aerial, prevent the environmental influence to status of radar antennae job and interference, reduce the power that drive antenna runs thereby, raise its job dependability. Radar overspreads the main component that regards radar as the system, its function stand or fall affects the function of radar system directly, can say, radar cover and antenna are coequal and important. The technology of cover of radar of high demand aerospace that radar overspreads pair of material is integrated material, craft, mechanical, electromagnetism, aerodynamics and structure are mechanical the knowledge that waits for course, design and production difficulty is greater. Because radar overspreads the job to be in a kind of complex and special environment, very slashing to the requirement of material, radar cover needs to have not only show wave performance exceedingly goodly, still need to have high strenth, high standard quantity, be able to bear or endure await a gender interpose report performance is good, good wait for function. Main is interpose report function, specific include dielectric constant (ε ) with loss horn tangent (Tan δ ) . Among them, tanδ is bigger, electromagnetic wave energy is in process of penetrable antenna cover, translate into quantity of heat and the energy of loss is more; ε is bigger, the electromagnetic wave reflex on air and interface of aerial cover wall is bigger, bring about mirror wave valve to n increases and transmit loss of efficiency thereby. Accordingly, tanδ of material of body of cover of cover of requirement radar antennae is low to be close to Yu Ling, ε as far as possible low, in order to achieve the goal that “ transmits ” of small reflex of ” and “ greatly. The material that normally production radar overspreads is used, appear wave colophony or fibre glass enhances composite material, and material of compound pottery and porcelain. Dalian justice state introduces nitrogen to change boracic accept rice to be in charge of powder to already was in Europe to apply successfully at a variety of type radar cover domain (purity is more than the nitrogen of 90 to turn valve of boracic accept rice. The picture comes from big Lian Yibang) the nitrogen that Dalian justice state introduces changes boracic accept rice to be in charge of powder, by development of American BNNano company, it is one of can commercialize dimensions to produce nitrogen to change boracic accept rice to be in charge of manufacturers with not at present much amount to, its product sells lab of orgnaization of bureau of aerospace of past United States, government and American navy to wait. This new-style nitrogen changes canal of boracic accept rice to use produce without activator, technology. With traditional nitrogen canal of rice of the accept that change boron differs, the appearance that provides in accept rice formed 6 irregular nitrogen to change boracic crystallization system, the advantage with this kind of distinct structure is when mixing with base material, optimize nitrogen to change boracic accept rice to be in charge of the cross-linking between grain and base material, enhance the mechanical performance of composite material. The nitrogen that BNNano company place produces changes canal of boracic accept rice to have Gao Bijiang to spend (15.714*106N.M/Kg) , Gao Yang model is measured (1.3TPa) , combat tensile strength high (33GPa) , tall coefficient of thermal conductivity (2400w/m.k) , high temperature resistant (℃ of the 850-900 in air) , be able to bear or endure quantity of the high strenth that the function such as soda acid satisfied radar adequately to overspread, high standard, be able to bear or endure the demand with await a gender good. Although its dielectric constant 5.9 on the high side, but what the accretion of weight 0.5%-1% measures colophony not to affect radar electromagnetic wave is penetrable, this had succeeded in American aerospace industry test and verify. Cover of carrier-borne battleplan radar (cover of carrier-borne battleplan radar. The picture comes from a network) layer upon layer base is folded and radar cover is become by fibre glass, and because promoted,enhance the strength between mechanical function 20-40% and layer material of the fibre glass material that added nitrogen to change boracic accept rice to be in charge of, pottery and porcelain, and the number of plies of the fibre glass that makes base is folded decreases, reduced the weight that radar overspreads thereby, decrease heavy self-evident to aero principal port, allegedly every reduce 1 kilogram weight, can bring the economic benefits of 100 thousand dollar. Show the use temperature of wave material to raise fiber to enhance pottery and porcelain further, nitride fiber enhances radical of pottery and porcelain composite material is become be able to bear or endure superhigh temperature appears wave material to study heat, this included nitrogen to change boracic fiber among them. Stuff of cover of correct of high speed aircraft is long the demand of heat-resisting function is very high. When missile flies with 4Ma speed in low altitude, radar antennae overspreads exterior temperature to be 800 ℃ about, nitrogen changes boracic accept rice to because its are high temperature resistant,provide data (in air high temperature resistant 900 ℃ ) with function of tall heat conduction (2400w/m.k) , special apply to missile head radar to overspread, decrease heavy while can reduce rocket capabilities again use up. Be based on afore-mentioned function, this new-style nitrogen changes boracic accept rice to be in charge of (BNNB) in suiting to join fibre glass and makings of base material of pottery and porcelain very much, make cover of antennae of special type radar, satisfy all sorts of function of modern design. Article meaning is disseminating new material information, partial picture comes from a network, reprint ask give chapter and verse for. If need to obtain detailed data, the means that our group wishs to be made in order to open chime seeks collaboration to welcome to wish of purpose the industry expert of composite material of unifinication of function of research and development seeks advice negotiate, connect a telephone call: 13130080576