< align=center><B >试题</B><B ><FONT face="Times New Roman">A</FONT></B><B >制陶材料优化设计</B><B><p></p></B></P>
< >硅酸盐(<FONT face="Times New Roman">Si<SUB>3</SUB>N<SUB>4</SUB></FONT>)制陶材料是一种强度高、耐磨、抗氧化和耐高温的材料,它广泛应用于高温结构的材料中,如切割工具、齿轮、内燃机部件及航空、航天飞行器的有关部件等。影响这种材料的强度的因素有:<p></p></P>
< ><FONT face="Times New Roman">A:</FONT>加热方案,<FONT face="Times New Roman">A<SUB>1</SUB>=</FONT>两步,<FONT face="Times New Roman">A<SUB>2</SUB>=</FONT>一步;(其中“两步”包括“一步”上的预烧结阶段)<FONT face="Times New Roman">.<p></p></FONT></P>
<P ><FONT face="Times New Roman">B:</FONT>四种烧结添加剂<FONT face="Times New Roman">CaO,Y<SUB>2</SUB>O<SUB>3</SUB>,MgO</FONT>和<FONT face="Times New Roman">Al<SUB>2</SUB>O<SUB>3</SUB></FONT>的总量,<FONT face="Times New Roman">B<SUB>1</SUB>=14</FONT>摩尔<FONT face="Times New Roman">%</FONT>,<FONT face="Times New Roman">B<SUB>2</SUB>=16</FONT>摩尔<FONT face="Times New Roman">%</FONT>,<FONT face="Times New Roman">B<SUB>3</SUB>=18</FONT>摩尔<FONT face="Times New Roman">%</FONT>。<p></p></P>
<P ><FONT face="Times New Roman">C:CaO</FONT>的含量,<FONT face="Times New Roman">C<SUB>1</SUB>=0.0</FONT>摩尔<FONT face="Times New Roman">%</FONT>,<FONT face="Times New Roman">C<SUB>2</SUB>=1.0</FONT>摩尔<FONT face="Times New Roman">%</FONT>,<FONT face="Times New Roman">C<SUB>3</SUB>=2.0</FONT>摩尔<FONT face="Times New Roman">%</FONT>。<p></p></P>
<P ><FONT face="Times New Roman">D: Y<SUB>2</SUB>O<SUB>3</SUB></FONT>的摩尔<FONT face="Times New Roman">%</FONT>与<FONT face="Times New Roman">MgO</FONT>的摩尔的比率,<FONT face="Times New Roman">D<SUB>1</SUB>=1:1, D<SUB>2</SUB>=1:2, D<SUB>3</SUB>=1:6.<p></p></FONT></P>
<P ><FONT face="Times New Roman">E</FONT>:<FONT face="Times New Roman">Y<SUB>2</SUB>O<SUB>3</SUB></FONT>的摩尔<FONT face="Times New Roman">%</FONT>与<FONT face="Times New Roman">Al<SUB>2</SUB>O<SUB>3</SUB></FONT>的摩尔<FONT face="Times New Roman">%</FONT>的比率,<FONT face="Times New Roman">E<SUB>1</SUB>=2:1, E<SUB>2</SUB>=1:1, E<SUB>3</SUB>=1:4.<p></p></FONT></P>
<P ><FONT face="Times New Roman">F:</FONT>烧结温度,<FONT face="Times New Roman">F<SUB>1</SUB>=1800<SUP>o</SUP>C, F<SUB>2</SUB>=1850<SUP>o</SUP>C, F<SUB>3</SUB>=1900<SUP>o</SUP>C.<p></p></FONT></P>
<P ><FONT face="Times New Roman">G:</FONT>烧结时间,<FONT face="Times New Roman">G<SUB>1</SUB>=1h, G<SUB>2</SUB>=2h, G<SUB>3</SUB>=3h.<p></p></FONT></P>
<P >为了寻找使得该种材料的强度达到最高的工艺条件,特此安排了如下试验方案,测量数据见表<FONT face="Times New Roman">1</FONT>,<p></p></P>
<P ><FONT face="Times New Roman">一、 </FONT>根据表<FONT face="Times New Roman">1</FONT>的测量数据,试建立合理的数学模型,并对试验结果进行分析;<p></p></P>
<P ><FONT face="Times New Roman">二、 </FONT>寻找使得强度最大的最优工艺条件;<p></p></P>
<P ><FONT face="Times New Roman">三、 </FONT>对你所建立的模型进行误差分析并做出评价;<p></p></P>
<P ><FONT face="Times New Roman">四、 </FONT>你能否提出一种更合理的试验设计计划及试验结果的分析方法?<p></p></P>
<P ><FONT face="Times New Roman">五、 </FONT>就你的研究对有关部门试写一份申报科技进步奖的报告。<p></p></P>
<P align=center><FONT size=3><B>表<FONT face="Times New Roman">1</FONT></B><B>、陶瓷试验方案及强度数据表<p></p></B></FONT></P>
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