对添加不同陶瓷含量的试样进行镶嵌、打磨、抛光、腐蚀制成金相试样后,在扫描电镜下观察其组织,结果如图4 所示.由图4(a)和(b)可知,基体为深灰色组织,但在基体上分布着灰白色的颗粒,形态

对添加不同陶瓷含量的试样进行镶嵌、打磨、抛光、腐蚀制成金相试样后,在扫描电镜下观察其组织,结果如图4 所示.由图4(a)和(b)可知,基体为深灰色组织,但在基体上分布着灰白色的颗粒,形态
对添加不同陶瓷含量的试样进行镶嵌、打磨、抛光、腐蚀制成金相试样后,在扫描电镜下观察其组织,结果如图4 所示.由图4(a)和(b)可知,基体为深灰色组织,但在基体上分布着灰白色的颗粒,形态多数呈立方或六边形,在局部区域出现聚集现象.而在灰白色颗粒周围出现近似黑色的组织,多数白色颗粒镶嵌在黑色组织上(见箭头指向位置).随着反应物中AlTiO2B2O3含量的增加,白色颗粒的数量显著增加,并且更加细小,分布由聚集趋于均匀、弥散,在灰色基体中明显可见一种比例较高、形态不规则的黑色组织,如同白色颗粒周围的黑色组织一般,如图4(c)和(d)所示.将图4(a)中基体、白色颗粒及白色颗粒周围等典型区域测试显微硬度.结果表明：基体的硬度差别很大,深灰色部位的硬度较低,仅为600~650 HV100,基体中黑色部分的硬度高,达到1 360~1 580 HV100；白色颗粒的硬度最高,高达2 700~3 200 HV100,而在白色颗粒周围的黑色区域,硬度则在1 400~1 500HV100 之间,与基体中的黑色组织硬度接近.

对添加不同陶瓷含量的试样进行镶嵌、打磨、抛光、腐蚀制成金相试样后,在扫描电镜下观察其组织,结果如图4 所示.由图4(a)和(b)可知,基体为深灰色组织,但在基体上分布着灰白色的颗粒,形态
不好意思,忙到现在啊 ,你这是论文么.
metallographic phase samples were made by inserting,rubbing,polishing and corroding the samples with different amount of ceramic content added.Observe the tissue of the metallographic phase samples under the Scanning electron microscope,the results shown as Figure 4.From Figure(a) and (b),we got to know that the tissue basal body in dark gray,but with greyish-white particles mainly in the shape of cube or hexagon distributed around it,and aggregation phenomenon found in some areas.Around the greyish-white particles,black-like particles were found and,most white particles were inserted to the black ones.(See Arrow pointed position).With the amont AlTiO2B2O3 of reactant increasing,the number of the white particles increased significantly,and became more leptos with even and disperse distribution tending.And the black tissue in irregular forms can be seen clearly in the gray basical body with higher proportion,which are similar to the tissue around the white particles as you can see from Figure (c)and (d).Test the micro – hardness of the basical body,whitel particles and their surrounding areas shown in Figure4(a),the result indicated that the micro-hardness varied a lot.the micro-hardness of the dark gray part is comparatively low as 600~650 HV100; the black part is as high as 1360~1580 HV100; the white part is the highest up to 2700~3200 HV100; while the black area around the white particles is between 1400~1500HV100,which is semilar to which of the black tissue of the basical body.

To add a different ceramic content, grinding, polishing specimen mosaic, made after corrosion of metallographic sample, the scanning electron microscopic observation of the tissue, the results as show...

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To add a different ceramic content, grinding, polishing specimen mosaic, made after corrosion of metallographic sample, the scanning electron microscopic observation of the tissue, the results as shown in figure 4. Figure 4 ( a ) and ( b ) the matrix organization, dark grey, but distributed in the matrix with the gray white particles, form a plurality of cubic or hexagonal, in local area aggregation phenomenon. While in the white particles around proximate the black organization, the majority of white particles embedded in the Black Organization (see arrow pointing position ). With the reaction of AlTiO2B2O3 content increased, a significant increase in the number of white particles, and more fine distribution tends to be uniform, by aggregation, diffusion, in grey matrix clearly visible, a higher proportion of irregular black organizations, like the white particles around a black organization, as shown in Figure 4 ( c ) and ( D as shown ). Figure 4 ( a ) in the substrate, the white particles and white particles around a typical regional test hardness. The results show that: the hardness of the matrix difference is very big, dark grey parts of the lower hardness, only 600~650 HV100 in the matrix, the black part of the high hardness, up to 1 360~1 580 HV100; white pellet hardness high, up to 2 700~3 200 HV100, whereas in the white particles around a black area, hardness is 1 400~1 between 500HV100, and the matrix hardness near the black organization.

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To add the content of different ceramic samples Mosaic, grinding, polishing and etching into metallographic specimen, scanning electron microscopy (sem) were observed under the organization, the resul...

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To add the content of different ceramic samples Mosaic, grinding, polishing and etching into metallographic specimen, scanning electron microscopy (sem) were observed under the organization, the results shown as shown in figure 4. The figure 4 (a) and (b), it is known that the matrix for dark grey tissue, but in the substrate distribution the off-white grain, form the majority of cubic or hexagon, in local area appear gathered phenomenon. And in gray particles appear around the approximate black organization, most of the white particles embedded in black organization (see arrows point to the location). With the reactants AlTiO2B2O3 content increases, the number of white particles significantly increased, and more small, distribution by gathered tend to be uniform, dispersion, in grey matrix is visible in a higher percentage, the shape is irregular black organization, like white particles around the black organization general, as shown in figure 4 (c) and (d) shows. Will figure 4 (a) matrix, white particles and white particles on the typical area around micro hardness test. The results show that matrix hardness difference is very big, dark grey parts of the hardness is low, only about 600 ~ 650 HV100, matrix black part of the high hardness, up to 1 360-1 580 HV100; White grain hardness supreme, up to 700 ~ 200 HV100, while in the white particles around the black area, hardness is in 1 400-1 500 HV100 between, and the base of the black organization hardness close to.

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Add different ceramic sample content inlay, sanding, polishing, etching made metallographic sample in a scanning electron microscope to observe the organization, and the results are shown in Figure 4....

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Add different ceramic sample content inlay, sanding, polishing, etching made metallographic sample in a scanning electron microscope to observe the organization, and the results are shown in Figure 4. Figure 4 (a) and (b) shows that the matrix organization is dark gray, but the base body on the distribution of gray particles, morphology Most cubic or hexagonal the aggregation phenomenon appears in the local area. In off-white granules around the approximation of the Organization of the Black majority white particles embedded in the black organization (see the arrow pointing to the location). With the reactant AlTiO2B2O3 content increases, the quantity of the white granules significantly increased, and the finer the distribution tends to be uniform by aggregation, dispersion, a higher proportion of the irregular black structure is visible in a gray matrix Match Usually black tissue around the white particles, shown in Figure 4 (c) and (d) below. The microhardness of the typical area of the matrix in Figure 4 (a), the white particles and white particles around test. The results show that: the hardness of the matrix vary widely, lower dark gray parts of the hardness of only 600 to 650 HV100 high hardness in the black portion of the substrate, up to 1 360 to 1 580 HV100; the highest hardness of the white particles, up to 2 700 ~ 3 200 HV100, the black area of the white around the particles, hardness of between 1 400 ~ 1 500HV100, and the hardness of the black matrix organization approaches.

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