摘要
In this paper,the influence of special silicas on the in-situ growth of silicon carbide whiskers in Al2O3-C refractories has been stud-ied.The microstructures of the products have been analyzed by means of SEM,and it is found that the whiskers grew better by adding some special silicas,Silica ② shows the best result because the VLS mechanism made the whiskers grow as long as 40μm and could be expected to greatly improve the mechnical properties of the refractories.
