中国有色金属学报
中國有色金屬學報
중국유색금속학보
THE CHINESE JOURNAL OF NONFERROUS METALS
2015年
6期
1590-1596
,共7页
乔丽萍%江龙发%黄华德%曲彪%张淑芳%张荣发%向军淮
喬麗萍%江龍髮%黃華德%麯彪%張淑芳%張榮髮%嚮軍淮
교려평%강룡발%황화덕%곡표%장숙방%장영발%향군회
钛合金%微弧氧化%电解质%钙盐%氢氧化钾
鈦閤金%微弧氧化%電解質%鈣鹽%氫氧化鉀
태합금%미호양화%전해질%개염%경양화갑
titanium alloys%micro arc oxidation%electrolyte%calcium salt%KOH
在含15 g/L食品添加剂植酸的基本溶液中,分别加入乙酸钙、氧化钙、磷酸二氢钙、甘油磷酸钙、EDTA-Ca 5种钙盐以及氢氧化钾,研究钙盐种类和氢氧化钾浓度对钛合金微弧氧化膜表面形貌及成分的影响。采用扫描电子显微镜(SEM)、X射线能谱仪(EDS)、X射线衍射仪(XRD)和傅里叶红外光谱仪(FT-IR)表征氧化膜的表面形貌、成分和结构。结果表明:钙盐能显著提高氧化膜中磷含量,且氧化钙、磷酸二氢钙和 EDTA-Ca 能较大程度地提高氧化膜中的钙含量;氢氧化钾浓度越高,氧化膜中的钙含量越高。钙盐和氢氧化钾均能增大氧化膜表面的微孔直径。
在含15 g/L食品添加劑植痠的基本溶液中,分彆加入乙痠鈣、氧化鈣、燐痠二氫鈣、甘油燐痠鈣、EDTA-Ca 5種鈣鹽以及氫氧化鉀,研究鈣鹽種類和氫氧化鉀濃度對鈦閤金微弧氧化膜錶麵形貌及成分的影響。採用掃描電子顯微鏡(SEM)、X射線能譜儀(EDS)、X射線衍射儀(XRD)和傅裏葉紅外光譜儀(FT-IR)錶徵氧化膜的錶麵形貌、成分和結構。結果錶明:鈣鹽能顯著提高氧化膜中燐含量,且氧化鈣、燐痠二氫鈣和 EDTA-Ca 能較大程度地提高氧化膜中的鈣含量;氫氧化鉀濃度越高,氧化膜中的鈣含量越高。鈣鹽和氫氧化鉀均能增大氧化膜錶麵的微孔直徑。
재함15 g/L식품첨가제식산적기본용액중,분별가입을산개、양화개、린산이경개、감유린산개、EDTA-Ca 5충개염이급경양화갑,연구개염충류화경양화갑농도대태합금미호양화막표면형모급성분적영향。채용소묘전자현미경(SEM)、X사선능보의(EDS)、X사선연사의(XRD)화부리협홍외광보의(FT-IR)표정양화막적표면형모、성분화결구。결과표명:개염능현저제고양화막중린함량,차양화개、린산이경개화 EDTA-Ca 능교대정도지제고양화막중적개함량;경양화갑농도월고,양화막중적개함량월고。개염화경양화갑균능증대양화막표면적미공직경。
Five kinds of calcium salts, such as Ca(CH3COO)2, CaO, Ca(H2PO4)2, C3H7CaO6P, EDTA-Ca and KOH, were separately added into a base solution of 15 g/L as food additive phytic acid. The effects of calcium salts and KOH concentrations on the surface morphology and chemical composition of micro arc oxidation coatings formed on titanium alloys were studied. The surface morphology, chemical compositions and phase structures were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffractometry (XRD). The results show that calcium slats can significantly increase the phosphorus content of anodic coatings. In addition, CaO, Ca(H2PO4)2 and EDTA-Ca can greatly improve the calcium content of anodic coatings. With the increase of KOH concentration, the calcium content of the oxide film increases. Both calcium slats and KOH can significantly increase the surface pore diameter of the oxide film.