CAJ | 학술논문

以滑石、高岭土、氧化铝、氢氧化铝和二氧化硅为原料，采用基础配方（w）：氧化铝17．8％、氢氧化铝4．5％、滑石42．4％、煅烧高岭土22．6％、生高岭土5．7％、二氧化硅7％，分别外加0、25％、35％、45％、55％质量分数的石墨做造孔剂，以PVA为结合剂，经混合、成型后，分别在1250、1300、1350℃保温1 h热处理而制备了适用于汽油机颗粒物捕集器（GPF）的堇青石多孔陶瓷材料，并对该试样进行了XRD和SEM分析、孔径大小和分布、显气孔率以及烧结等性能的研究。结果表明：以石墨为造孔剂，在1300℃保温1 h可以制备出微孔化且孔径大小呈梯度分布的堇青石多孔材料；改变石墨加入量，可以有效控制试样的气孔率、孔径大小及孔径分布，当石墨质量分数为45％左右时，试样的显气孔率最大，抗折强度也较高，综合性能较好。
이활석、고령토、양화려、경양화려화이양화규위원료，채용기출배방（w）：양화려17．8％、경양화려4．5％、활석42．4％、단소고령토22．6％、생고령토5．7％、이양화규7％，분별외가0、25％、35％、45％、55％질량분수적석묵주조공제，이PVA위결합제，경혼합、성형후，분별재1250、1300、1350℃보온1 h열처리이제비료괄용우기유궤과립물포집기（GPF）적근청석다공도자재료，병대해시양진행료XRD화SEM분석、공경대소화분포、현기공솔이급소결등성능적연구。결과표명：이석묵위조공제，재1300℃보온1 h가이제비출미공화차공경대소정제도분포적근청석다공재료；개변석묵가입량，가이유효공제시양적기공솔、공경대소급공경분포，당석묵질량분수위45％좌우시，시양적현기공솔최대，항절강도야교고，종합성능교호。
The basic formulation was 17.8% (in mass,the same hereinafter)Al2O3,4.5% Al(OH)3,42.4%talc,22.6%calcined kaolin,5.7% raw kaolin,7%SiO2.Based on the basic formulation,the porous cordier-ite ceramics for gasoline particulate filter (GPF)were prepared by extra adding graphite as pore forming agent (0,25%,35%,45 and 55%,respectively),PVA as binder,mixing,shaping,and firing at 1 250,1 300 and 1 350 ℃ for 1 h,respectively.The specimens were analyzed by XRD and SEM.The pore size distribu-tion,apparent porosity and sintering properties were researched.The results show that the porous cordier-ite ceramic with gradient distributed micropores can be prepared using graphite as pore forming agent af-ter fired at 1 300 ℃for 1 h;the porosity,pore size and its distribution can be controlled by changing graph-ite addition;when graphite addition is 45%,the ceramics perform good properties including the highest ap-parent porosity and good modulus of rupture.