本文選題：硅渣 + 玻璃陶瓷��； 參考：《山東建筑大學(xué)》2015年碩士論文

【摘要】：隨著世界經(jīng)濟(jì)的快速發(fā)展,石油產(chǎn)品需求量越來越大,石油催化裂化催化劑行業(yè)快速增長(zhǎng),加大了石油催化劑廢渣一硅渣的排放堆積量。硅渣占用了大量的土地,污染了環(huán)境,危害了人類的生存。因此,如何有效的處理硅渣成為了一項(xiàng)急需解決的課題。本文工作是用硅渣制備玻璃陶瓷,研究晶核劑對(duì)硅渣基礎(chǔ)玻璃析晶行為的影響,通過分析不同種類和含量的晶核劑對(duì)硅渣玻璃陶瓷的物相和性能的影響,確定最佳晶核劑和最佳含量。其次研究硅渣玻璃陶瓷的析晶動(dòng)力學(xué)和結(jié)晶行為的研究,利用差熱分析技術(shù)(DTA),計(jì)算析晶動(dòng)力學(xué)參數(shù),預(yù)測(cè)判斷硅渣基礎(chǔ)玻璃的析晶能力,并解釋其析晶行為。然后研究熱處理溫度和時(shí)間對(duì)硅渣玻璃陶瓷的物相、顯微結(jié)構(gòu)和性能的影響,利用X射線衍射儀(XRD)和掃描電子顯微鏡(SEM)技術(shù)分析了溫度和時(shí)間對(duì)物相、顯微結(jié)構(gòu)的影響,測(cè)試、分析不同熱處理溫度和時(shí)間下的抗折強(qiáng)度、顯微硬度等性能,確定最佳熱處理溫度和時(shí)間。其次研究硅渣含量對(duì)硅渣玻璃陶瓷物相、顯微結(jié)構(gòu)和性能的影響,通過分析XRD圖譜和SEM圖片,解釋其性能的變化,確定最佳硅渣用量。研究結(jié)果表明：硅渣玻璃陶瓷最佳成核劑是Ti02,最佳含量為5%；隨著硅渣含量的增加,析晶化學(xué)能E逐漸增加,表明其析晶能力逐漸下降；隨著熱處理溫度的升高,各組硅渣玻璃陶瓷的晶相含量逐漸增加,到達(dá)某一溫度后,增加速率減小,XRD圖譜峰值不再顯著增加,微觀結(jié)構(gòu)均為球狀顆粒,平均直徑逐漸增大；在最佳熱處理溫度900℃時(shí),微觀結(jié)構(gòu)最為致密；隨著熱處理時(shí)間的延長(zhǎng),各組硅渣玻璃陶瓷的晶相含量逐漸增加,增加速率減小,XRD圖譜峰值不再顯著增加,微觀結(jié)構(gòu)均為球狀顆粒,平均直徑逐漸增大,在最佳熱處理時(shí)間1.5h時(shí),微觀結(jié)構(gòu)最為致密；隨著硅渣含量的增加,晶相含量逐漸減少,晶粒形態(tài)均勻球狀,平均直徑逐漸減小,微觀結(jié)構(gòu)在硅渣含量70%時(shí)最為致密。通過研究和分析,硅渣玻璃陶瓷在經(jīng)過最佳熱處理溫度900℃和時(shí)間1.5h之后,玻璃陶瓷性能最優(yōu)：抗折強(qiáng)度值為295.2MPa；顯微維氏硬度值為989.72MPa；抗化學(xué)腐蝕性為0.09%;密度值為2.78 g/cm3。研究得出硅渣利用率最高為90%,此時(shí)抗折強(qiáng)度值為123.3MPa；顯微維氏硬度值在為640.1MPa；抗化學(xué)腐蝕性為0.34%；密度值為2.51g/cm3。
[Abstract]:With the rapid development of the world economy, the demand for petroleum products is increasing, and the petroleum catalytic cracking catalyst industry is growing rapidly. Silicon slag occupies a lot of land, pollutes the environment and endangers the survival of human beings. Therefore, how to deal with silicon slag effectively has become an urgent problem. In this paper, glass ceramics were prepared from silicon slag. The effect of nucleating agent on the crystallization behavior of silicon slag based glass was studied. The effects of different kinds and contents of nucleating agents on the phase and properties of silicon slag glass ceramics were analyzed. Determine the optimum nucleating agent and content. Secondly, the crystallization kinetics and crystallization behavior of silicon slag glass ceramics were studied. The crystallization kinetics parameters were calculated by differential thermal analysis (DTA), the crystallization ability of the glass was predicted and the crystallization behavior was explained. Then the effects of heat treatment temperature and time on the phase, microstructure and properties of silicon slag glass ceramics were studied. The effects of temperature and time on the phase and microstructure of the glass ceramics were analyzed and tested by means of X-ray diffractometer (XRD) and scanning electron microscopy (SEM). The flexural strength, microhardness and other properties of different heat treatment temperature and time were analyzed, and the optimum heat treatment temperature and time were determined. Secondly, the effect of silicon slag content on the phase, microstructure and properties of silicon slag glass ceramics was studied. By analyzing XRD and SEM pictures, the change of properties was explained and the optimum amount of silicon slag was determined. The results show that the optimum nucleating agent is Ti02 and the optimum content is 5.The crystallization chemical energy E increases gradually with the increase of silicon slag content, which indicates that the crystallization ability decreases gradually with the increase of heat treatment temperature. The crystalline phase content of the silicon slag glass-ceramics increased gradually, and the peak value of XRD spectra of increasing rate decreased no longer significantly, the microstructure was spherical particles, and the average diameter increased gradually at the optimum heat treatment temperature of 900 鈩，

本文編號(hào)：2004285