本研究內容主要是針對以銅/酚醛樹脂製作之半金屬基摩擦材料，使用改變製程參數、添加纖維、施以半碳化熱處理、改變基材比例及改變基材種類等方法，改善此摩擦材料在高溫的磨潤性質，並討論各改良方法對材料在機械性質及磨耗機制方面之影響，期能自行研發具有優異耐熱及磨耗性質的半金屬基摩擦材料。研究結果如下：
　　在製程參數方面，實驗結果發現最佳的熱壓條件為熱壓溫度180 ℃，而熱壓壓力則為100 kg/cm2，且穩定化時最佳的升溫速率條件為：當溫度小於160 ℃時，升溫速率為 1 ℃/min且溫度160-180 ℃時，升溫速率為 0.5 ℃/min。
　　在添加纖維方面，由實驗結果可得知添加紅銅纖維或黃銅纖維的試片有著較未添加纖維強化的試片高的抗壓強度值。除了添加纖維束纖維的試片，所有添加纖維強化的試片其平均摩擦係數值均較未添加纖維強化的試片高，添加紅銅纖維的試片其磨耗損失最少。故在此一系列纖維強化由銅/酚醛樹脂組成的半金屬基摩擦材料中，紅銅纖維是最佳的強化材。
　　在改變熱處理條件方面，實驗結果顯示當半碳化升溫速率較慢時，會使摩擦材料有較高的抗壓強度及硬度並有較少的裂紋產生。當半碳化溫度較400 ℃高時則會使材料的抗壓強度及硬度值同時減少，並且摩擦係數會隨著半碳化溫度的增加而增加。當材料在600 ℃碳化時會有最佳的磨潤性質，並且經半碳化處理後的試片有較好的抗高溫熱/氧化能力。
　　在改變基材比例方面，實驗結果經半碳化處理基材樹脂含量為50 vol%的試片有最大的抗壓強度、硬度值及密度增加值。在各類條件的試片中，基材樹脂含量為50 vol%的試片有著高且穩定的摩擦係數值(0.3-0.4)和適當的磨耗量，對於實際應用上有最佳的潛力。
在改變基材種類方面，實驗結果顯示經半碳化處理後，以酚醛樹脂為基材的試片有較好的機械性質。由摩擦係數及磨耗損失的比較可發現，以酚醛樹脂為基材的試片在高溫時(300 ℃)仍能保有高的摩擦係數(約0.35)，且其磨耗損失只有以瀝青為基材之試片的一半，可得知以酚醛樹脂為基材並經半碳化熱處理製成之半金屬基摩擦材料較以瀝青為基材的材料為佳。
　　在添加纖維經半碳化熱處理方面，實驗結果顯示所有添加纖維強化的試片經半碳化處理後，其抗壓強度及硬度值都較未添加纖維強化的試片低。金屬纖維的添加有增加材料初始摩擦係數的效果。除了添加纖維束纖維的試片，未添加纖維的試片有著最少的磨耗損失。經半碳化熱處理後相較於添加纖維的試片，未添加纖維的試片有著較佳的機械強度及磨耗性質。
　　綜合以上所述，由本研究結果發現對銅/酚醛樹脂基摩擦材料進行半碳化熱處理，可使材料在無添加纖維的情況下，達到改善材料耐熱/氧化性質的能力及增加磨耗性質的效果。

　　The present work is the study of a copper/phenolic resin-based semi-metallic friction material. To improve the tribological behavior of the friction material at higher temperature, we used different processing parameters, different fiber additions, heat treatment (semi-carbonization) conditions, different matrix components and different matrix types. We also discussion the effect of each way on mechanical and tribological behavior of a copper/phenolic resin-based semi-metallic friction material. We hope to development a semi-metallic friction material which has superior heat resistance and best tribological behavior.
　　The effect of the processing parameters indicate that the best parameters of hot press is at temperature 180 ℃ and under the pressure of 100 kg/cm2. The optimal post-cure rate is 1 ℃/min when temperature is lower than 160 ℃ and 0.5 ℃/min when temperature between 160-180 ℃.
The results of fiber addition show that compared to the fiber-free material, materials containing copper and brass fibers have higher compressive strengths. Except cellulose, all fiber-added materials exhibit higher average COF values than that without fibers. The copper fiber-added material has the smallest wear. Among all fibers the copper fibers appear to be the best candidate due to its relatively high and stable COF as well as low wear.
　　The results of carbonization show that a lower carbonization rate leads to materials having a higher compressive strength and hardness, as well as fewer cracks. Heat-treating to higher temperature causes both values to decline. Both the friction coefficient and wear are increased with an increasing carbonization temperature. The material carbonized to 600 ℃ exhibits optimal tribological performance. Carbonized samples demonstrate far better high-temperature heat/oxidation resistance than that of non-carbonized samples.
The results of phenolic content show that the materials with 50 vol% resin exhibited the maximum compressive strength, hardness and increase in density after semi-carbonization. Among all materials, R5 demonstrated the greatest potential with a high and stable COF value and reasonably low wear.
　　The results of different matrix type show that that the pitch-matrix materials exhibit lower compressive strength and hardness values than those of the resin-matrix materials after semi-carbonization. Compared the results of COF and weight loss, the resin-matrix materials can maintain the COF(about 0.35) at a high temperature (about 300 ℃) and the weight loss of the resin- matrix materials only half of the pitch-matrix materials. The resin-matrix materials demonstrate far better high-temperature heat/oxidation resistance than the pitch-matrix materials.
　　The results of fiber addition and semi- carbonization show that all fiber-added materials exhibit lower compressive strength and hardness values than those without fibers after semi- carbonization. The metal fiber-added materials have the best effect in increasing initial COF. Except cellulose, all fiber-added materials exhibit higher wear values than those without fibers. Compared to fiber-added materials, the fiber-free material appears to be the best candidate due to its relatively high mechanical properties and stable tribological behavior after semi-carbonization.
　　Experimental results indicate that the semi- carbonization can improve the high-temperature heat/oxidation resistance and tribological behavior of a copper/phenolic resin-based semi-metallic friction material without fiber addition.

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