不同的表面處理方法對(duì)選擇性激光熔覆鈷鉻合金與三種水門汀粘結(jié)強(qiáng)度的影響實(shí)驗(yàn)
發(fā)布時(shí)間：2019-05-16 13:57
【摘要】：目的:通過體外實(shí)驗(yàn),使用不同表面處理方法處理選擇性激光熔覆技術(shù)(Selective Laser Melting,SLM)制作的鈷鉻合金表面,評(píng)價(jià)不同表面處理后的SLM鈷鉻合金與臨床常用的三種水門汀的粘結(jié)強(qiáng)度。方法:1、SLM鈷鉻合金試塊的制作:按照實(shí)驗(yàn)需求,使用bego鈷鉻合金粉末在激光熔覆機(jī)中制取10mm×10mm×2mm大小的長方體鈷鉻合金試塊57個(gè)。2、SLM鈷鉻合金試塊預(yù)處理:流水下,57塊SLM鈷鉻合金試塊依次使用400目、600目、800目、1000目的SiC水砂紙?jiān)谕瑝毫ο麓蚰ヒ话俅?沖洗吹干后,隨機(jī)抽取一個(gè)在掃描電鏡下放大2000倍觀察其表面形貌。再將打磨好的57塊SLM鈷鉻合金試塊使用筆式噴砂機(jī)噴砂10秒。噴砂完成后,SLM鈷鉻合金試塊在蒸餾水中超聲清洗10分鐘,并在室溫下自然干燥24小時(shí)備用。3、SLM鈷鉻合金標(biāo)準(zhǔn)測試塊的制作:將上述處理的SLM鈷鉻合金試塊在模具中使用自凝塑料包埋,暴露處理面,做成直徑14mm、厚度4mm的標(biāo)準(zhǔn)測試塊。4、實(shí)驗(yàn)分組:將57塊標(biāo)準(zhǔn)測試塊隨機(jī)分成A、B、C三組,每組19個(gè)試塊。其中A組不做處理,B組涂硅烷偶聯(lián)劑,C組使用9.6%氫氟酸酸蝕處理。在A、B、C三組中分別隨機(jī)抽取一個(gè)試塊,在掃描電鏡下觀察。剩余的A、B、C三組共54塊試塊,各組分別隨機(jī)分成9個(gè)亞組:A1、A2、A3,B1、B2、B3,C1、C2、C3,每個(gè)小組6個(gè)試塊。其中A1、B1、C1三組和玻璃離子水門汀進(jìn)行粘結(jié),A2、B2、C2三組和樹脂加強(qiáng)型玻璃離子水門汀進(jìn)行粘結(jié),A3、B3、C3三組和樹脂水門汀進(jìn)行粘結(jié)。各組粘結(jié)實(shí)驗(yàn)均嚴(yán)格根據(jù)廠家說明書操作,并且控制為相同的粘結(jié)面積。粘結(jié)完成后放入盛有人工唾液的恒溫(37°C)水浴箱中24小時(shí)。5、實(shí)驗(yàn)測定:(1)上述打磨、噴砂、噴砂+硅烷偶聯(lián)劑、噴砂+酸蝕劑四種表面處理后SLM鈷鉻合金在2000倍掃描電鏡下表面形貌的觀察。(2)將試塊在萬能測試機(jī)上進(jìn)行剪切實(shí)驗(yàn),測出粘結(jié)面斷裂時(shí)的力F,并利用P=F/S算出各組的剪切強(qiáng)度值。使用IBM SPSS Stitastics 19.0分析不同表面處理方式對(duì)SLM鈷鉻合金與三種水門汀粘結(jié)強(qiáng)度的影響。(3)觀察剪切實(shí)驗(yàn)斷裂界面的破壞模式。結(jié)果:1、表面處理方法和粘結(jié)劑的種類兩個(gè)因素有交互作用;噴砂+硅烷偶聯(lián)劑的處理方式與樹脂的粘結(jié)剪切強(qiáng)度最強(qiáng)。2、以表面處理方法作為分析因素:(1)在使用玻璃離子水門汀的條件下,三種表面處理方法所得的剪切強(qiáng)度沒有統(tǒng)計(jì)學(xué)差異(P0.05);(2)在使用樹脂加強(qiáng)型玻璃離子水門汀的條件下,三種表面處理方法所得的剪切強(qiáng)度沒有統(tǒng)計(jì)學(xué)差異(P0.05);(3)在使用樹脂水門汀的條件下,噴砂+硅烷偶聯(lián)劑的處理方法所得剪切強(qiáng)度大于噴砂的處理方法(P0.05),且噴砂+硅烷偶聯(lián)劑的表面處理方法所得剪切強(qiáng)度大于噴砂+氫氟酸酸蝕的表面處理方法(P0.05),但噴砂和噴砂+酸蝕這兩種表面處理方法所得的剪切強(qiáng)度沒有統(tǒng)計(jì)學(xué)差異(P0.05)。3、以粘結(jié)劑作為分析因素:(1)在噴砂的條件下,樹脂水門汀的剪切強(qiáng)度大于玻璃離子水門汀的剪切強(qiáng)度(P0.05),且樹脂水門汀的剪切強(qiáng)度大于樹脂加強(qiáng)型玻璃離子水門汀(P0.05),但玻璃離子水門汀和樹脂加強(qiáng)型玻璃離子水門汀之間沒有統(tǒng)計(jì)學(xué)差異(P0.05);(2)在噴砂+硅烷偶聯(lián)劑的條件下,樹脂水門汀樹脂加強(qiáng)型玻璃離子水門汀玻璃離子水門汀(P0.05);(3)在噴砂+酸蝕的條件下,樹脂水門汀樹脂加強(qiáng)型玻璃離子水門汀玻璃離子水門汀(P0.05)。4、肉眼觀察粘結(jié)界面的破壞模式,結(jié)果:SLM鈷鉻合金和玻璃離子水門汀及樹脂加強(qiáng)型玻璃離子水門汀粘結(jié)實(shí)驗(yàn)的破壞模式主要為界面破壞,和樹脂水門汀的粘結(jié)實(shí)驗(yàn)的斷裂模式主要是混合破壞。結(jié)論:選擇性激光熔覆鈷鉻合金在噴砂后使用硅烷偶聯(lián)劑,并選擇樹脂水門汀粘結(jié),效果最佳。
[Abstract]:Objective: To evaluate the bonding strength of the surface of the cobalt-chromium alloy prepared by selective laser cladding (SLM) using different surface treatment methods. Method:1. The preparation of the cobalt-chromium alloy test block of the SLM: According to the experimental requirements, the method of using the bgo-cobalt-chromium alloy powder in the laser cladding machine to prepare the 10-mm,10-mm and 2-mm-size rectangular-shaped cobalt-chromium alloy test block with a size of 57.2, the pretreatment of the cobalt-chromium alloy test block of the SLM: Under the running water,57 SLM cobalt-chromium alloy blocks were polished by 400 mesh,600 mesh,800 mesh, and 1000 mesh SiC water sandpaper at the same pressure. After the flushing and blow-drying, one of the 57 SLM cobalt-chromium alloy samples was randomly selected to be amplified by a scanning electron microscope for 2000 times to observe the surface morphology. And then the polished 57-block SLM cobalt-chromium alloy test block is blasted with a pen-type sand blasting machine for 10 seconds. after the sand blasting is finished, the SLM cobalt-chromium alloy test block is ultrasonically cleaned in distilled water for 10 minutes, and is naturally dried at room temperature for 24 hours for standby; and 3, the preparation of the standard test block of the SLM cobalt-chromium alloy standard is that the treated SLM cobalt-chromium alloy test block is embedded in a mould by using a self-setting plastic, and the treatment surface is exposed, A standard test block with a diameter of 14 mm and a thickness of 4 mm is made.4. Experimental grouping: The 57 standard test blocks are randomly divided into three groups of A, B and C, and 19 test blocks in each group. The group A is not treated, and the B group is coated with a silane coupling agent, and the group C uses 9.6% hydrofluoric acid etching treatment. One test block was taken at random in three groups of A, B and C, and observed under the scanning electron microscope. The remaining A, B and C were divided into four groups: A1, A2, A3, B1, B2, B3, C1, C2, and C3, and 6 test blocks for each group. In which, three groups of A1, B1 and C1 and glass ionomer cement are bonded, and the three groups of A2, B2 and C2 and the resin reinforced glass ionomer cement are bonded, and the three groups of A3, B3 and C3 and the resin water menustine are bonded. All groups of bonding experiments were conducted in strict accordance with the manufacturer's instructions and controlled to the same bonding area. After the bonding was completed, it was put into a constant temperature (37 擄 C) water bath with artificial saliva for 24 hours.5. The experiment was carried out: (1) the observation of the surface morphology of the SLM Co-Cr alloy at 2000 times the scanning electron microscope after four surface treatments of the above-mentioned grinding, sand-blasting, sand-blasting + silane coupling agent, sand-blast + acid and the like. (2) The test block was cut out on the universal test machine to measure the force F at the time of fracture of the bonding surface, and the shear strength values of each group were calculated by P = F/ S. The effect of different surface treatment methods on the bonding strength of the SLM-Co-Cr alloy and the three kinds of water-gate was analyzed by using the IBM SPSS (SPSS) 19.0. (3) Observe the failure mode of the fracture interface of the shear test. The results were as follows:1. The surface treatment method and the type of the binder have the interaction; the treatment of the sand-blast + silane coupling agent and the adhesive shear strength of the resin are the most.2. The surface treatment method is used as an analysis factor: (1) under the condition of using the glass ionomer cement, The shear strength of the three surface treatment methods was not statistically different (P0.05); (2) There was no statistical difference in the shear strength of the three surface treatment methods under the condition that the resin reinforced glass ionomer was used (P0.05). (3) the shear strength obtained by the treatment method of the sand-blast + silane coupling agent is higher than that of the sand-blasting (P0.05) under the condition that the resin water is used; And the shear strength obtained by the surface treatment method of the sand-blasting + silane coupling agent is higher than that of the surface treatment method of the sand-blasting + hydrofluoric acid etching (P0.05), but the shear strength obtained by the two surface treatment methods of sandblasting and sandblasting + acid etching is not statistically different (P0.05). (1) Under the condition of sandblasting, the shear strength of the resin water gate is higher than that of the glass ionomer cement (P0.05), and the shear strength of the resin water gate is higher than that of the resin reinforced glass ionomer (P0.05). but there was no statistical difference between the glass ionomer cement and the resin reinforced glass ionomer (P0.05); (2) under the condition of sand-blast + silane coupling agent, the resin-water-menustine resin reinforced glass ionomer cement (P0.05); (3) Under the condition of sand-blast and acid etching, the resin-water-menustine resin reinforced glass ionomer cement (P0.05).4. The failure mode of the bonding interface is observed by the naked eye, and the result is as follows: The failure mode of the bonding experiment of the SLM-Co-Cr alloy and the glass ionomer cement and the resin-reinforced glass ionomer cement is mainly the interface failure, and the fracture mode of the bonding experiment of the resin water gate is mainly mixed and destroyed. Conclusion: The selective laser cladding of the cobalt-chromium alloy uses the silane coupling agent after sandblasting, and the resin water menustine is selected to bond and the effect is the best.
【學(xué)位授予單位】：南昌大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：R783.1
本文編號(hào)：2478324
[Abstract]:Objective: To evaluate the bonding strength of the surface of the cobalt-chromium alloy prepared by selective laser cladding (SLM) using different surface treatment methods. Method:1. The preparation of the cobalt-chromium alloy test block of the SLM: According to the experimental requirements, the method of using the bgo-cobalt-chromium alloy powder in the laser cladding machine to prepare the 10-mm,10-mm and 2-mm-size rectangular-shaped cobalt-chromium alloy test block with a size of 57.2, the pretreatment of the cobalt-chromium alloy test block of the SLM: Under the running water,57 SLM cobalt-chromium alloy blocks were polished by 400 mesh,600 mesh,800 mesh, and 1000 mesh SiC water sandpaper at the same pressure. After the flushing and blow-drying, one of the 57 SLM cobalt-chromium alloy samples was randomly selected to be amplified by a scanning electron microscope for 2000 times to observe the surface morphology. And then the polished 57-block SLM cobalt-chromium alloy test block is blasted with a pen-type sand blasting machine for 10 seconds. after the sand blasting is finished, the SLM cobalt-chromium alloy test block is ultrasonically cleaned in distilled water for 10 minutes, and is naturally dried at room temperature for 24 hours for standby; and 3, the preparation of the standard test block of the SLM cobalt-chromium alloy standard is that the treated SLM cobalt-chromium alloy test block is embedded in a mould by using a self-setting plastic, and the treatment surface is exposed, A standard test block with a diameter of 14 mm and a thickness of 4 mm is made.4. Experimental grouping: The 57 standard test blocks are randomly divided into three groups of A, B and C, and 19 test blocks in each group. The group A is not treated, and the B group is coated with a silane coupling agent, and the group C uses 9.6% hydrofluoric acid etching treatment. One test block was taken at random in three groups of A, B and C, and observed under the scanning electron microscope. The remaining A, B and C were divided into four groups: A1, A2, A3, B1, B2, B3, C1, C2, and C3, and 6 test blocks for each group. In which, three groups of A1, B1 and C1 and glass ionomer cement are bonded, and the three groups of A2, B2 and C2 and the resin reinforced glass ionomer cement are bonded, and the three groups of A3, B3 and C3 and the resin water menustine are bonded. All groups of bonding experiments were conducted in strict accordance with the manufacturer's instructions and controlled to the same bonding area. After the bonding was completed, it was put into a constant temperature (37 擄 C) water bath with artificial saliva for 24 hours.5. The experiment was carried out: (1) the observation of the surface morphology of the SLM Co-Cr alloy at 2000 times the scanning electron microscope after four surface treatments of the above-mentioned grinding, sand-blasting, sand-blasting + silane coupling agent, sand-blast + acid and the like. (2) The test block was cut out on the universal test machine to measure the force F at the time of fracture of the bonding surface, and the shear strength values of each group were calculated by P = F/ S. The effect of different surface treatment methods on the bonding strength of the SLM-Co-Cr alloy and the three kinds of water-gate was analyzed by using the IBM SPSS (SPSS) 19.0. (3) Observe the failure mode of the fracture interface of the shear test. The results were as follows:1. The surface treatment method and the type of the binder have the interaction; the treatment of the sand-blast + silane coupling agent and the adhesive shear strength of the resin are the most.2. The surface treatment method is used as an analysis factor: (1) under the condition of using the glass ionomer cement, The shear strength of the three surface treatment methods was not statistically different (P0.05); (2) There was no statistical difference in the shear strength of the three surface treatment methods under the condition that the resin reinforced glass ionomer was used (P0.05). (3) the shear strength obtained by the treatment method of the sand-blast + silane coupling agent is higher than that of the sand-blasting (P0.05) under the condition that the resin water is used; And the shear strength obtained by the surface treatment method of the sand-blasting + silane coupling agent is higher than that of the surface treatment method of the sand-blasting + hydrofluoric acid etching (P0.05), but the shear strength obtained by the two surface treatment methods of sandblasting and sandblasting + acid etching is not statistically different (P0.05). (1) Under the condition of sandblasting, the shear strength of the resin water gate is higher than that of the glass ionomer cement (P0.05), and the shear strength of the resin water gate is higher than that of the resin reinforced glass ionomer (P0.05). but there was no statistical difference between the glass ionomer cement and the resin reinforced glass ionomer (P0.05); (2) under the condition of sand-blast + silane coupling agent, the resin-water-menustine resin reinforced glass ionomer cement (P0.05); (3) Under the condition of sand-blast and acid etching, the resin-water-menustine resin reinforced glass ionomer cement (P0.05).4. The failure mode of the bonding interface is observed by the naked eye, and the result is as follows: The failure mode of the bonding experiment of the SLM-Co-Cr alloy and the glass ionomer cement and the resin-reinforced glass ionomer cement is mainly the interface failure, and the fracture mode of the bonding experiment of the resin water gate is mainly mixed and destroyed. Conclusion: The selective laser cladding of the cobalt-chromium alloy uses the silane coupling agent after sandblasting, and the resin water menustine is selected to bond and the effect is the best.
【學(xué)位授予單位】：南昌大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：R783.1
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