烧蚀率

燃气参数及材料缺陷对绝热层烧蚀率影响的试验研究

Experimental Investigation of the Effects of Combustion Gas and Material Defects on the Insulation Ablation Rate

而对于编织体密度较大的B、C系列的试样，其质量烧蚀率和线烧蚀率均较小。

Mass ablation rate and linear ablation rate are small in the sample of B , C series .

与PAN基炭布增强材料相比，粘胶丝基炭布表现出层剪强度高、密度低和模量低的优点，但热膨胀系数大和线烧蚀率较大。

As compared with PAN carbon fabric reinforced composites , rayon reinforced ablative material has many advantages , such as high ILSS , low density and low modulus , but it is has high CTE and linear ablation ( ratio ) .

试验结果表明，可以用等离子喷涂法制备较为致密的HfC涂层，HfC涂层的线烧蚀率为0.019mm/s。

The ablation test has been made to coating samples . The experimental results show the compacter HfC coatings can be prepared by plasma spray process and the ablation rate of coating is 0.019 mm / s.

为了研究激光参数对碳纤维增强有机硅改性环氧树脂复合材料质量烧蚀率的影响规律，选用不同激光参数、采用高强度CO2激光器对该复合材料进行了激光辐照试验。

In order to study the effect of laser parameters on the mass ablative rate of the carbon fiber reinforced silicone modified epoxy resin composite , laser irradiation experiments of the composite were carried out by a high power CO_2 laser with different laser parameters .

身管烧蚀率与弹道诸元的关系式

The Quantitative Relation of Gun Barrel Erosion Rate and Interior Ballistics Parameters

激光参数对碳纤维复合材料质量烧蚀率的影响

Effect of laser parameters on mass ablative rate of carbon fiber reinforced composite

基体改性对碳/碳复合材料烧蚀率影响的神经网络模拟

Neural Network Simulation on Effect of Burning Rate of Modified Carbon / Carbon Composites

最后计算了不同参数对材料烧蚀率的影响，得到了烧蚀率随富氧含量、试验段压强以及炭化层厚度变化的趋势。

Finally , the numerical technique was used to investigate influence that different parameters on ablation rate .

实验结果表明，石墨掺杂能有效降低材料的烧蚀率。

The experimental results showed that the doped impurities could effectively decrease the erosion rate of the graphite .

而该复合材料的质量烧蚀率随入射激光强度和光斑直径的增大而增大。

The mass ablative rate of the composite increases when the laser intensity and spot diameter are increased .

结果表明，试验发动机中获得的烧蚀率数据高于氧乙炔试验数据。

The test results show that the erosion rate data are higher than that in the oxygen-acetylene test .

采用质量烧蚀率和烧蚀因子可较好地表征和比较烧蚀材料的烧蚀性能。

The mass loss rate and the ablation factor can be used to characterize the ablative properties of these materials correctly .

以新研制的C/C/Al2O碳陶梯度功能材料为研究对象，对此类材料的烧蚀率计算公式进行了推导。

Then the ablative ratio formula of C / C / A12O3 , which is a type of novel materials , is deduced .

应用该模型预估了试验所用绝热层材料的烧蚀率，计算值与试验值较为一致。

The ablation rate of insulation samples was predicted by the ablation mod-el , and computation results were almost consistent with test data .

颗粒冲刷速度较低时，即使颗粒浓度很高，烧蚀率也并不是很大；

The results also show that the lower velocity of particle , the lower erosion rate , even if the concentration of particles is very high .

结果表明：导流管轴向线烧蚀率变化较大，沿气流方向呈上升趋势。

The results show that the axis linear ablation rate of the material has a great change and the linear ablation increases along the gas flux direction .

以胶黏剂对石墨材料的粘接强度和胶黏剂本体的线烧蚀率为依据，经配方优化和验证实验确定最佳组分配比。

On the base of the bonded strength to graphite and line-erosion rate of adhesive , the best mole ration is defined through optimized formula and verified test .

能量密度达到造成液态质量迁移条件的长脉冲激光，可获得较大的烧蚀率和截面积较大的通孔。

A long-pulse laser , whose energy density can cause the liquid mass transferred , can get a greater ablation ratio and a hole with larger cross section .

分别分析了入射激光的辐照时间、强度和光斑直径对碳纤维增强有机硅改性环氧树脂复合材料质量烧蚀率的影响规律。

The effect of the irradiation time , laser intensity and spot diameter on the mass ablative rate of carbon fiber reinforced silicone modified epoxy resin composite was analyzed respectively .

根据流体力学问题，推导出强脉冲激光作用在空间碎片上时的烧蚀率，及碎片受到的推力。

Based on hydrodynamic methods , the ablation rate and the propulsive force on the debris , when the high-power pulsed laser irradiates on the space debris , have been derived .

结果表明由于同位素效应引起的靶丸半径烧蚀率修正从氢靶丸的1下降到氚靶丸的0.487，因此在消融率计算时是不可忽略的。

The results show that the modifications caused by isotope effects for pellet erosion speeds range from 1 for hydrogen pellet down to 0.487 for tritium pellet and are not negligible in ablation rate calculations .

结果表明：白炭黑对线烧蚀率影响高度显著，随着白炭黑添加量的增加，硅橡胶耐烧蚀性能变差；

The results showed that the influence of white carbon black on the linear ablation rate had high significant and the anti ablation of silicone rubber got bad with the increase of white carbon black content .

热解碳基体C/C试样在密度低5%的情况下，其线烧蚀率却比沥青碳基体C/C试样低14%，表现出更好的抗烧蚀性能；

Compared with the pitch-based carbon matrix C / C , the linear ablative rate of pyrolytic carbon matrix C / C was less by 14 % , though its density was still 5 % lower .

其对石墨材料的粘接强度达到11.6MPa，胶黏剂本体线烧蚀率0.058mm/s，质量烧蚀率0.0732g/s。

The bonded strength to graphite of the optimum formula is up to 11.6 MPa , the line-erosion rate is up to 0.058 mm / s , the mass-erosion rate is up to 0.0732 g / s.

研究结果表明：激光辐照时间对该复合材料的质量烧蚀率的影响不大，而该复合材料的质量烧蚀率随入射激光强度和光斑直径的增大而增大。

The results indicate that the mass ablative rate of the composite is not greatly affected by the laser irradiation time , but affected by the laser intensity and spot diameter . The mass ablative rate of the composite increases when the laser intensity and spot diameter are increased .

研究结果表明，所制备的酚醛型氰酸酯具有低的杂质含量、高的烧蚀残碳率，适合于高性能烧蚀材料的树脂基体。

The cyanate ester of novolac , prepared in this paper , has lower content of impurity , higher char yield and good processability , which is suitable for use as the matrix of high performance ablative material .

高压强范围（9～20MPa），压强对石墨喉衬的烧蚀影响非常显著，烧蚀率随压强增大而增大，通过压强&时间曲线可以建立压强与烧蚀率之间的关系。

The effect of pressure on graphite throat liner erosion is obvious at high pressure ( 9 ~ 20MPa ) . The erosion - rate increases while pressure increases . The relation between pressure and erosion rate can be calculated by pressure curve .

结果表明通过阳极氧化处理可以改善复合材料的耐烧蚀性能，其线烧蚀率降低了7.2%，背面最高温度降低了20℃。

The results indicated that the method could improve the ablative resistance of the composites . The linear ablative rate of the composites at the test surface and the maximum temperature of the backside of the composites were decreased by 7.2 % and 20 ℃ respectively .

细编穿刺毡结构C/C复合材料由于Z向纤维束的存在，加速了材料烧蚀表面粗糙度的变化，烧蚀率略高于针刺无纬布整体毡结构C/C复合材料；

The surface roughness would be accelerated because of the existence of Z direction carbon fiber bundles , and the ablation rate of the C / C composite with 3D fine woven pierced structure is higher than that of the unidirectional carbon fiber needled bulk felt structure .