理论密度 meaning in English
theoretical de ity
theoretical density
Examples
- The method has little man - made influence , and it is available in all types of pitch materials or pitch mix materials
该法人为影响因素小，适用于各种沥青及集料拌制的混合料的最大理论密度的测量。 - The density of this target was 5 . 21 g / cm3 , which was 94 % of the theoretic density of the licoo _ 2 。 in cold pressing and sintering process different percentage of binder were added to the target and the best percentage was found
其中使用碳化硅模具,制备出纯度和密度较高的热压靶材,靶材密度为5 . 21g / cm3 ,达到licoo _ 2理论密度的94 % 。 - While adding 1 % binder the preferable target was produced , and the density was 4 . 89g . cm - 3 , which was 88 % of the theoretic density of the licoo _ 2 with ar as the sputtering gas , the technics of rf sputtering to produce the licoo _ 2 film were studied systematically
在冷压烧结方法制备licoo _ 2靶材的过程中,烧结前添加了不同量粘结剂,就综合纯度和粘结性能两方面考虑,加入1 %的粘结剂较为理想。所制备的licoo _ 2靶材密度为4 . 89g / cm3 ,达到licoo _ 2理论密度的88 % 。 - Relying on the yearly scientific research item of the guangdong province department , the dissertation firstly analyses the mechanical and structural characteristics of sma mixture , moreover , gives an elaborate discourse on some issues in prevalent design method of sma and relevant tests such as the computing of the theoretical maximum density , evaluation of initial asphalt content in designing sma mixture and computing of rut index . at the same time suggestions for improvement are offered . subsequently , through research on asphalt and modified asphalt with ldpe test and by means of indoor test of sma mixture , the detailed analyses for the modified asphalt with ldpe and road performance of sma is discussed , finally , the applicable method and principal of sma mixture design in jiangsu province was recommended
本文以广东省交通厅年度科研项目《 sma推广应用研究》为依托，采用理论与实践相结合的方法，首先从理论上分析了sma混合料的力学及结构特点，对现行的sma配合比设计以及试验中最大理论密度的计算、初始沥青用量预估和车辙指标等问题进行了较为详尽的阐述与分析，并提出了相应的改进建议；然后再通过对沥青与改性沥青试验、 sma混合料室内试验等，对pe改性沥青以及sma混合料的各项路用性能的试验结果进行了较为细致的分析，最后提出了适合于广东地区sma设计的方法原则。 - The influence of nano - al2o3 on the sintering and the properties of the si3n4 ceramics was researched in this paper . the samples with different amount of nano - al2o3 were obtained by using pressureless sintering at 1600 , 1650 , 1700 in the nitrogen atmosphere . the microstructure and the composition of the ceramics were determined by the means of x - ray , sem , micro - hardness meter etc . it is show that the sisty ceramics can be densified at 1650c to % percent of the theory density through the addition of nano - al2o3 ( the value could be 90 percent by other technique ) . the crystalline growth of the cylindrical - si3n4 and the ratio of its longitude to its diameter are increased with the addition of nano - al2o3 . a uniform microstructure and an fined crystal as well as more sialon phases can be obtained in the si3n4 ceramics through the addition of that
实验结果表明：在碳管炉中、氮气保护下进行烧结，添加剂为纳米al _ 2o _ 3粉末时，由于纳米粉末的高活性、高烧结驱动力，在1650就可使si _ 3n _ 4完全地烧结，并使其致密度可达理论密度的96以上(比其它工艺高6左右) ；同时，纳米al _ 2o _ 3地加入大大促进了长柱状? si _ 3n _ 4的生长和发育及柱状晶长径比的提高，使微观结构均匀、细化，形成了更多力学性能优异的固体? sialon相，减少了不利于陶瓷材料性能的晶间玻璃相，净化了晶界。