| 1. | Surface active agents and detergents - division of powder sample 表面活性剂和洗涤剂粉状样品分样法 |
| 2. | Methods for determination of particle size distribution - guide to powder sampling 粒度分布测定方法.第1部分:粉末取样指南 |
| 3. | Continuous powder sample 连续粉末取样 |
| 4. | The half - life was then determined as 71 days and the crystal powder sample , containing more than 98 . 61 % of l - alanine , was obtained 转化液经提取,获得l -丙氨酸结晶。产品经鉴定, l -丙氨酸含量达到98 . 61 。 |
| 5. | An arithmetic solution of micro temperature rising velocity of powder sample under the influence of high intensity of pulsating electric current are brought forward 计算了坯料在高密度脉冲电流作用下粉坯的宏观温升。提出了坯料在高密度脉冲电流作用下粉坯微观温升的计算方法。 |
| 6. | Crystal structure and ceramoc microstructure of powder samples are examined by xrd and tem . the mean grain size of the materials ranges from 10nm to 50nm by controlling the reaction concentration and annealing temperature 采用化学沉淀法成功地制备了纳米晶zno粉体,根据不同反应物浓度和热处理温度的选取,晶粒尺寸控制在10 ? 50nm范围内。 |
| 7. | The experimental powder samples were heated from room temperature to 600 、 800 、 900 、 1000 、 1100 and 1300 respectively for sintering , and then were analysed by means of xrd to investigate the crystal granularity of the powder samples sintered at different temperature 对粉体分别进行从室温加热到600 、 800 、 900 、 1000 、 1100和1300的?烧处理,对?烧样品进行了x射线衍射分析,研究了不同?烧温度下,纳米氧化铝的晶粒度。 |
| 8. | Three series of absorbent powder samples were synthesized by the high - temperature solid - state method : the first is that fe / ti mol proportion in the material changes regularly ; the other one is that different thuliums doped in the same absorbent ; the last series is the absorbent was doped by different content thulium . the permittivity and permeability of the modified ilmenite absorbents were systematically measured 通过使原料中金属离子的摩尔比例( fe ti )作有规律变化、在同一基质中掺杂同含量的不同稀土金属以及改变同种稀土金属的掺杂量等手段,采用高温固相合成法制备了不同系列可供进行吸波性能研究的钛酸亚铁类化合物吸收剂。 |
| 9. | In this paper , we prepared 110x80mm ti : al2o3 crystal ( 11 stone ) by directional temperature gradient technique ( dtgt ) , choosed its top , middle part and bottom , and fabricated powder samples with carnelian mortar . then we observed and analyzed the surface of ti stone by using sem , and found it is ti that is the main component of the black thing on the surface of ti stone 本文采用导向温度梯度法制备了110 80mmti : al _ 2o _ 3晶体(钛宝石) ,并取其上部、中部、下部用玛瑙研钵制成粉末样品,用扫描电子显微镜对钛宝石表面进行了观察分析,结果表明钛宝石表面上的黑色物质的主要成分为钛。 |