PARTICLE COATING BY CHEMICAL VAPOR DEPOSITION IN A FLUIDIZED BED REACTOR

来源 :China Particuology Science and Technology of Particles | 被引量 : 0次 | 上传用户:qq460423406
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Aluminum coatings were created onto glass beads by chemical vapor deposition in a fluidized bed reactor at different temperatures. Nitrogen was enriched with Triisobutylaluminum (TIBA) vapor and the latter was thermally decomposed inside the fluidized bed to deposit the elemental aluminum. To ensure homogeneous coating on the bed material, the fluidizing conditions necessary to avoid agglomeration were investigated for a broad range of temperatures. The deposition reaction was modeled on the basis of a discrete particle simulation to gain insight into homogeneity and thickness of the coating throughout the bed material. In particular, the take-up of aluminum was traced for selected particles that exhibited a large mass of deposited aluminum. Aluminum coatings were created onto glass beads by chemical vapor deposition in a fluidized bed reactor at different temperatures. Nitrogen was enriched with Triisobutylaluminum (TIBA) vapor and the latter was thermally decomposed inside the fluidized bed to deposit the elemental aluminum. the bed material, the fluidizing conditions necessary to avoid agglomeration were investigated for a broad range of temperatures. The deposition reaction was investigated for a broad range of temperatures. The deposition reaction was modeled on the basis of a discrete particle simulation to gain insight into homogeneity and thickness of the coating throughout the bed material. , the take-up of aluminum was traced for selected particles that show a large mass of deposited aluminum.
其他文献
近几年我们县的烟田常有蒙古拟地甲为害烟苗,被为害的烟苗轻者发黄,生长缓慢;重者则造成死亡,致使烟田缺苗。据1982年和1983年在辛寨镇、蒋峪镇、盘阳乡烟田调查,有15-20%的
我省地形复杂,气候条件差异较大,种植作物种类多,适宜多种病虫发生。统计发生面积的病虫有80多种,总发生面积3亿亩左右,年发生面积100万亩以上的病虫有32种,作为预测预报对
新中国成立前后,一首名为《你是灯塔》的歌曲风靡全国,但因被指与苏联一首乐曲雷同而突被禁唱。20余年后的“文化大革命”中,电影《南京长江大桥》中 Before and after the
Thefunctionofimmunesysteminwhoreceivedunrelatedallogenicbonemarrowtransplantation (allo BMT)wasverylowandthese patientswouldeasily Thefunctionofimmunesysteminwhoreceivedunrelatedallogenicbonemarrowtransplantation (allo BMT)wasverylowandthese patientswoul
期刊
在大鼠用微量注射技术研究褪黑素在下丘脑前核对心血管活动的作用 ,以及用辣根过氧化物酶神经传导通路追踪技术研究下丘脑前核参与心血管活动交感传出的纤维投射。结果表明 ,
《江西农业科技》1988年第2期刊出“江西省部分地区1988年稻瘟病预测”以后,陆续有南康、信丰,大余……等13个县要求参加协作组,并提供该县积累多年的、连续的历史病情资料
香蕉萎缩病为系统性病毒病害,其病原新近证实为局限于病组织筛管细胞的球状病毒,由蕉蚜传播.其病征为罹病株全体矮化,叶身狭小直立不伸展,叶柄短缩,各叶簇集在假茎顶端,成为
图1示手在第三把位时的样式。图2示手在第五把位时的情形。图3示手在第七把位时的情形。图12、13各例的手指是放在第一弦(E弦)上的,注意手和手指的样子。图4示手在第五把位,
石嘴山市有林面积36.73万亩,其中人工林16万亩。四旁植树443.73万株,森林覆盖率由1980年的1.1%提高到4.7%。这对防风固沙,改变生态环境,保护农牧业生产,提供部分用材,绿化美化
今年是西藏和平解放60周年,这是新西藏开天辟地伟大变迁的60年,更是藏族人民放声高歌昂首前进的60年。高原放歌60年,雪域音符换新篇。雪域儿女把60年灿烂的岁月积淀成历史的