CAJ | 학술논문

为了将采用粉末烧结成型工艺制作的Ag/AgCl氯离子传感器应用于混凝土中，首先在混凝土模拟孔溶液中对传感器的稳定性、Nernst响应特性、响应时间、抗极化及温度系数等电化学性能进行了研究，利用扫描电子显微镜（SEM）分析了在模拟孔溶液中浸泡90 d的传感器的表面形貌。结果表明，经过90 d模拟孔溶液浸泡传感器的表面没有新物质生成，碱性溶液对传感器结构及性能未产生影响；传感器电位稳定，最大波动小于3 mV，在混凝土模拟孔溶液中传感器的线性响应方程与标准Nernst方程符合的很好，线性相关系数为0.9996，传感器响应时间为30 s，抗极化性能良好，温度系数为0.2811 mV/℃，对温度变化不敏感。粉末烧结成型法制备的氯离子传感器在混凝土模拟孔溶液中具有良好的电化学性能，为该传感器在实际混凝土工程中的应用奠定了基础。
위료장채용분말소결성형공예제작적Ag/AgCl록리자전감기응용우혼응토중，수선재혼응토모의공용액중대전감기적은정성、Nernst향응특성、향응시간、항겁화급온도계수등전화학성능진행료연구，이용소묘전자현미경（SEM）분석료재모의공용액중침포90 d적전감기적표면형모。결과표명，경과90 d모의공용액침포전감기적표면몰유신물질생성，감성용액대전감기결구급성능미산생영향；전감기전위은정，최대파동소우3 mV，재혼응토모의공용액중전감기적선성향응방정여표준Nernst방정부합적흔호，선성상관계수위0.9996，전감기향응시간위30 s，항겁화성능량호，온도계수위0.2811 mV/℃，대온도변화불민감。분말소결성형법제비적록리자전감기재혼응토모의공용액중구유량호적전화학성능，위해전감기재실제혼응토공정중적응용전정료기출。
For the using of Ag/AgCl chloride ion sensor fabricated by powder-sintering in concrete ,the electrochemical tests such as the stability,linear response,response time,polarization behavior and temperature coefficient of Ag/AgCl chloride ion sensor were examined in concrete simulating pore solution,and the working surface of sensor after submission in pore solution for 90 days was analyzed by scanning electron microscopy.The results show that there is no oxide and other new substances on the working face after submersing 90 days.The potential drift of the sensor is less than 3 mV and the response to chloride meet the Nernst equation,the correlation coefficient is 0.999 6.Meanwhile,the polarization performance of the sensor is good,the response time is 30 s,as well as the temperature coefficient is 0.281 1 mV/℃.The excellent performance is attributed to new fabrication method,and is good preparation for using in concrete.Therefore, the chloride ion sensor by sintering method has good electrochemical performance in concrete simulated pore solution.