外文翻譯(中文)羥基磷灰石的熱分解和力學(xué)性能研究-其他專(zhuān)業(yè)-資料下載頁(yè)
2025-01-19 00:16本頁(yè)面
【導(dǎo)讀】材料科學(xué)與工程學(xué)院，哈爾濱理工大學(xué)，中國(guó)哈爾濱150080；材料科學(xué)與工程學(xué)院，哈爾濱工程大學(xué)，中國(guó)哈爾濱150001；研究HAP陶瓷和HAP-B2O3復(fù)合陶瓷的熱分解率和力學(xué)性能的關(guān)系，B原子融入HAP晶格形成固溶體，引起晶格間距的增大，然而，當(dāng)B2O3的質(zhì)量分?jǐn)?shù)超過(guò)。隙便有強(qiáng)烈攝入外電子的趨勢(shì)。因此，HAP的OH-和PO43-位子很可能被。外來(lái)離子所占據(jù)。羥基磷灰石比生物醫(yī)用鈦合金、硅膠和碳材料具有更加優(yōu)良。羥基磷灰石陶瓷主要用于硬組織的修復(fù)和替換，領(lǐng)域也存在很大的潛力。HAP在某一溫度下很容易分解，導(dǎo)致羥基磷。具有較低的彎曲強(qiáng)度和斷裂韌性，不能滿足臨床應(yīng)用的需求。如何抑制羥基磷灰石陶瓷的分解是一個(gè)熱點(diǎn)，需要解決。以用于蒸汽摻雜。量，對(duì)羥基磷灰石陶瓷的生物特性進(jìn)行評(píng)估，從而確定可行性方案。當(dāng)燒結(jié)溫度達(dá)到1350℃時(shí)，其分解率幾乎達(dá)到80%。它表明HAP已分解成β-TCP。度分解，當(dāng)B2O3的含量超過(guò)5%時(shí)，HAP的熱分解率最低。是HAP的主峰左移，這有利于提高其抗彎強(qiáng)度和斷裂韌性。
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