碳化

Because there are many complex factors resulting in concrete cardonated,the experimences of other peoples must be used in line with local conditions and materials other than simply when study on carbonation speed and evaluation of proof carbonification.

由于影响混凝土碳化的因素复杂多变，在研究碳化速度，评价其抗碳化性能优劣时，应因地、因材制宜，不能生套别人的经验。

With cellulose as the skeleton, gelatinized cassava starch solution and tungsten carbide were used as porogenic agent and inert densifier, respectively. The matrix prepared showed good sphericity and a logarithmic symmetrical distribution of particle size.

取得的主要结果如下：纤维素基复合层析基质的物理功能化：以再生纤维素为骨架，碳化钨粉末为增重剂，糊化木薯淀粉为制孔剂，采用&反相悬浮热再生法&和成球后去除淀粉方法，成功制备了纤维素/碳化钨复合微球，可用作层析介质的基质。

On the basis of the ligamental reticulated carbon foam by Klett J W in 2000 and hollow microsphere carbon foam by Bruneton E in 2002, a hollow microsphere/ reticulated composite carbon foam was prepared by microstructural optimization, carbonization and graphitization respectively.

在Klett J W等人于2000年制备的韧带网络型碳泡沫和Bruneten E等人在2002年制备了一种空心微球碳泡沫材料结构的基础上，分别经过微观结构优化、碳化、石墨化处理，制备出了一种空心微球/网络复合型碳泡沫材料。

The effects of the spray-drying process of the ammonium paratungstate and the carburization temperature on the formation of the precusor and WC powder were investigated.

采用喷雾干燥-固定床法制备碳化钨粉末，研究了喷雾干燥和碳化反应温度对制备偏钨酸铵前驱体以及碳化钨的影响，前驱体粉末呈现均匀的球状形态，平均粒径为10~20μm，喷雾温度对影响粒径大小和分布影响小；400℃的进口温度下进行喷雾干燥，喷雾粉末仍然保持偏钨酸铵原来的基本组成不发生分解。

It was discovered that tensile strength regularity varied with carbonated zone and half- carbonated zone and uncarbonated zone of the hydraulic carbonated concrete.3 Rusty fundamental of rebar is explained; Rusty rebar of the long-age hydraulic reinforced concrete that corrosion ratio is less than 6 percent is been mechanical test.

采用圆柱体横劈法测定了长龄期水工碳化混凝土的三个分区强度，揭示了此类水工混凝土碳化区、反应区和未碳化区的强度变化规律。

The carbonizing temperature, carbonizing time and the pressure of benzene (C6H6) are the decisive factors.

结果表明：在1723K，苯的压强为1.5×10-2Pa，碳化6min后Mo-La2O3阴极碳化度达到19.7%，碳化层为疏松多孔的Mo2C组织，有利于阴极热电子发射。

The process involved the preparation of vanadium carbide which can be prepared from V 2O 3 by vacuum carbon reduction and then being nitrified to vanadium nitride by nitrogen gas.

以V2 O3为原料，采用真空还原方法制备出碳化钒，生成的碳化钒直接进行渗氮制备出碳氮化钒。

B〓C coating possessed 4% of porosity, 12. 8Gpa of bonding strength, 28Gpa of microhardness, and its modulus is up to 230Gpa. It would provide a kind of coating material with excellent properties for many industrial fields.(2) The phase composition of B〓C coating was studied by XPS, XRD and EDS. It was found that: the oxidation activity energy of B〓C powder and coating is different, which is due to the difference of phase composition between them.

用XPS、XRD和EDX研究了碳化硼涂层的相组成，发现碳化硼粉末在涂层形成过程中不可避免的存在分解；比较了碳化硼涂层和粉末在高温下的氧化行为，发现涂层的氧化活化能比粉末要低，这是由于涂层和粉末相组成不同所造成的。

The change of pH value and viscosity in carbonization process of suspension were compared and analyzed.

目前，有关纳米碳酸钙的制备研究，主要集中在碳化反应工段的碳化反应设备结构、碳化反应条件优化、添加剂选择、气体分布器形式等方面[2～5]，而就原料石灰的质量对纳米碳酸钙制备过程和产品质量的影响研究报道很少。

During carbonization process, carbon basal planes form, and with the carbonization temperature increasing, carbon basal planes orient along the fiber axis.

在碳化过程中，碳网平面形成，并随着碳化温度的升高，碳网层面沿纤维轴方向择优取向。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。