A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing high-purity spraying-free coating at bottom of ingot casting single crystal
The invention relates to a method for preparing a high-purity spraying-free coating at the bottom of an ingot casting single crystal. The method comprises the following steps: grinding fused quartz particles and deionized water in a ball mill, taking the resulting product out, adding the resulting product in a dispersion machine, adding silica sol, fused quartz powder, fused quartz powder and a high-purity ceramic binder, and stirring the mixture to form slurry A; adding fused quartz particles and deionized water into the ball mill for milling, taking the resulting product out, adding the resulting product into a stirrer, adding silica sol and fused quartz powder, and stirring the mixture to form slurry B; adding fused quartz particles and crystalline quartz in the ball mill for milling, taking the resulting product out, and mixing quartz slurry, silica sol, a binder and water to form slurry C; adding silicon nitride and deionized water to the stirrer, adding a silicon nitride sintering aid, silica sol and a high-purity binder, and fully stirring the mixture to form slurry D; and sequentially manufacturing a bottom lining flat layer, a rough loose layer, a quartz compact isolationlayer and a silicon nitride compact isolation layer. The method can effectively reduce a red area at the bottom of the ingot casting single crystal, and can reduce the proliferation of dislocation andother defects.
一种铸锭单晶用底部高纯度免喷涂层制备方法，将熔融石英颗粒和去离子水置于球磨机中磨制，取出后置于分散机中，再加入硅溶胶、熔融石英粉料、熔融石英粉料、高纯陶瓷粘结剂搅拌后形成浆料A；将熔融石英颗粒、去离子水置于球磨机中磨制，取出后置于搅拌机中，再加入硅溶胶、熔融石英粉料搅拌形成浆料B；将熔融石英颗粒、结晶态石英置于球磨机中磨制，取出后将石英浆料、硅溶胶、粘结剂和水混合后形成浆料C；将氮化硅、去离子水置于搅拌机中，再加入氮化硅助烧剂、硅溶胶、高纯粘结剂充分搅拌后形成浆料D；依次制作底部衬平层、粗糙疏松层、石英致密隔离层和氮化硅致密隔离层。该方法可以有效降低铸锭单晶底部红区，并可降低位错等缺陷的增殖。
Method for preparing high-purity spraying-free coating at bottom of ingot casting single crystal
The invention relates to a method for preparing a high-purity spraying-free coating at the bottom of an ingot casting single crystal. The method comprises the following steps: grinding fused quartz particles and deionized water in a ball mill, taking the resulting product out, adding the resulting product in a dispersion machine, adding silica sol, fused quartz powder, fused quartz powder and a high-purity ceramic binder, and stirring the mixture to form slurry A; adding fused quartz particles and deionized water into the ball mill for milling, taking the resulting product out, adding the resulting product into a stirrer, adding silica sol and fused quartz powder, and stirring the mixture to form slurry B; adding fused quartz particles and crystalline quartz in the ball mill for milling, taking the resulting product out, and mixing quartz slurry, silica sol, a binder and water to form slurry C; adding silicon nitride and deionized water to the stirrer, adding a silicon nitride sintering aid, silica sol and a high-purity binder, and fully stirring the mixture to form slurry D; and sequentially manufacturing a bottom lining flat layer, a rough loose layer, a quartz compact isolationlayer and a silicon nitride compact isolation layer. The method can effectively reduce a red area at the bottom of the ingot casting single crystal, and can reduce the proliferation of dislocation andother defects.
一种铸锭单晶用底部高纯度免喷涂层制备方法，将熔融石英颗粒和去离子水置于球磨机中磨制，取出后置于分散机中，再加入硅溶胶、熔融石英粉料、熔融石英粉料、高纯陶瓷粘结剂搅拌后形成浆料A；将熔融石英颗粒、去离子水置于球磨机中磨制，取出后置于搅拌机中，再加入硅溶胶、熔融石英粉料搅拌形成浆料B；将熔融石英颗粒、结晶态石英置于球磨机中磨制，取出后将石英浆料、硅溶胶、粘结剂和水混合后形成浆料C；将氮化硅、去离子水置于搅拌机中，再加入氮化硅助烧剂、硅溶胶、高纯粘结剂充分搅拌后形成浆料D；依次制作底部衬平层、粗糙疏松层、石英致密隔离层和氮化硅致密隔离层。该方法可以有效降低铸锭单晶底部红区，并可降低位错等缺陷的增殖。
Method for preparing high-purity spraying-free coating at bottom of ingot casting single crystal
一种铸锭单晶用底部高纯度免喷涂层制备方法
SU CHENG (author) / DENG LIANGLIANG (author) / XING FULONG (author) / SUN CHUNHAO (author) / WANG CHEN (author) / WANG HAIGUO (author)
2020-08-25
Patent
Electronic Resource
Chinese
METHOD FOR PRODUCING PIEZOELECTRIC SINGLE CRYSTAL INGOT AND PIEZOELECTRIC SINGLE CRYSTAL INGOT
| European Patent Office | 2020
Method for producing piezoelectric single crystal ingot and piezoelectric single crystal ingot
| European Patent Office | 2021
| British Library Online Contents | 2012