Mathematical Analysis of the Reduction of Wüstite at Different Basicity Using Factorial Design

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr class="thead"><td align="left" rowspan="2">Treatment combination</td><td align="center" colspan="8">Factorial effect</td></tr><tr class="thead"><td align="center"><span style="width: 5.91998ptpx;"><svg height="9.04777pt" id="M108" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -8.99795 5.91998 9.04777" width="5.91998pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.0135,0,0,-0.0135,0,0)"><path d="M405 650H141L135 622C222 616 230 610 215 535L133 116C118 41 113 33 29 28L23 0H289L295 28C209 33 205 40 219 116L298 535C312 609 317 616 399 622L405 650Z" id="g113-74"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="428" vert-adv-y="428"></glyph.data></g></svg></span></td><td align="center"><span style="width: 9.65971ptpx;"><svg height="9.04777pt" id="M109" 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617C421 617 486 595 486 510ZM466 200C466 100 393 35 296 35C222 35 198 51 212 127L250 333H303C388 333 466 303 466 200Z" id="g113-67"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="601" vert-adv-y="601"></glyph.data></g><g transform="matrix(.0135,0,0,-0.0135,17.935,0)"><path d="M645 631C614 643 545 666 457 666C215 666 23 519 23 283C23 90 158 -16 337 -16C412 -16 489 2 522 10C543 39 590 127 606 167L580 181C519 89 459 18 348 18C201 18 122 136 122 287C122 464 244 632 435 632C544 632 602 595 608 472L639 475C643 526 645 581 645 631Z" id="g113-68"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="668" vert-adv-y="668"></glyph.data></g></svg></span></td></tr><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr><td align="left">(1)</td><td align="center">+</td><td align="center">−</td><td align="center">−</td><td align="center">+</td><td align="center">−</td><td align="center">+</td><td align="center">+</td><td align="center">−</td></tr><tr><td align="left"><span style="width: 6.98072ptpx;"><svg height="6.42315pt" id="M116" style="vertical-align:-0.2129903pt" version="1.1" viewbox="-0.0498162 -6.21016 6.98072 6.42315" width="6.98072pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.0135,0,0,-0.0135,0,0)"><path d="M483 97L471 123C436 91 401 65 392 65C388 65 384 74 390 106C414 239 444 378 457 429L455 433C444 433 429 436 416 439C392 444 368 448 344 448C281 448 204 415 152 376C71 315 23 205 23 103C23 21 57 -12 85 -12C114 -12 149 6 185 34C231 70 285 119 329 183H331L309 81C292 0 308 -12 326 -12C350 -12 421 24 483 97ZM374 387C370 363 356 291 345 261C315 193 181 50 139 50C124 50 110 71 110 118C110 224 153 331 218 379C238 394 271 402 301 402C329 402 359 394 374 387Z" id="g113-98"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="506" vert-adv-y="506"></glyph.data></g></svg></span></td><td align="center">+</td><td align="center">+</td><td align="center">−</td><td align="center">−</td><td align="center">−</td><td align="center">−</td><td align="center">+</td><td align="center">+</td></tr><tr><td align="left"><span style="width: 6.47756ptpx;"><svg height="9.89089pt" id="M117" style="vertical-align:-0.2129898pt" version="1.1" viewbox="-0.0498162 -9.6779 6.47756 9.89089" width="6.47756pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.0135,0,0,-0.0135,0,0)"><path d="M452 333C452 398 425 448 375 448C329 448 235 404 140 292H138L229 683C233 701 234 712 225 712C208 712 149 686 66 677L64 652H97C135 652 140 651 129 598L38 167C23 96 29 57 44 33C60 7 98 -12 132 -12C169 -12 232 3 290 41C383 102 452 223 452 333ZM365 316C365 199 308 87 239 49C221 39 200 35 183 35C137 35 99 70 112 163C116 191 123 215 129 233C190 316 290 392 330 392C348 392 365 372 365 316Z" id="g113-99"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="469" vert-adv-y="469"></glyph.data></g></svg></span></td><td align="center">+</td><td 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align="center">+</td><td align="center">+</td><td align="center">+</td><td align="center">+</td><td align="center">+</td><td align="center">+</td></tr><tr class="table-tr"><td colspan="9"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Algebraic signs for calculating effects in the 2<sup>3</sup> design.

Journal of Metallurgy

tab2

Table 2

Table 2: Mathematical Analysis of the Reduction of Wüstite at Different Basicity Using Factorial Design 